# Monitoring IPv6 Hardware Multicast Packet Replication

You can use the commands explained in this topic to monitor hardware multicast packet replication-related statistics for port 8. For port 8, queue statistics have no direct relationship to any of the 8 ports because each packet that is transmitted through the queue can be sent through 1 or more of the 8 physical ports.

Multicast traffic redirected by the hardware multicast packet replication feature is displayed in the statistics for the IPv6 or VLAN interface over port 8, not the original IP or VLAN interface over the physical port.

The statistics for the IPv6 or VLAN interface over port 8 reflect the number of packets that passed through this interface destined for the hardware multicast packet replication hardware. These statistics have no direct correlation to the number of packets being transmitted from any of the physical ports.

The various statistics that are monitored over port 8 are:

- Monitoring Port Statistics
- Monitoring VLAN Statistics
- Monitoring IPv6 Statistics
- Monitoring MLD Statistics

## Monitoring Port Statistics

#### Purpose

Display the status of Gigabit Ethernet interfaces. You can use the delta keyword to view baselined statistics. You can use the brief keyword to view the operational status of all configured interfaces.

| Note: The E120 and E320 routers output for monitor and show commands is identical to output from other E Series routers, except that the E120 and E320 router output also includes information about the adapter identifier in the interface specifier (slot/adapter/port).

#### Action

To display the status of a Gigabit Ethernet interface:

    host1#show interfaces gigabitEthernet 14/0/0
    	GigabitEthernet14/0/0 is Up, Administrative status is Up
    	Hardware is Intel IXF1104, address is 0090.1a42.0b87
    	MAU is 1000BASE-SX
     TX Output Power: 469.6 uW	RX Input Power: 0.5 uW
    	MTU: Operational 1518, Administrative 1518
    	Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
    	Speed: Operational 1000 Mbps, Administrative Auto Negotiate
    	Debounce: State is Disabled
     5 minute input rate 0 bits/sec, 0 packets/sec
    	5 minute output rate 0 bits/sec, 0 packets/sec
    	In: Bytes 0, Unicast 0
    	Multicast 0, Broadcast 0
    	Errors 0, Discards 0, Mac Errors 0, Alignment 0
    	CRC 0, Too Longs 0, Symbol Errors 0
    	Out: Bytes 0, Unicast 0
    	Multicast 0, Broadcast 0
    	Errors 0, Discards 0, Mac Errors 0, Deferred 0, No Carrier 0
    	Collisions: Single 0, Multiple 0, Late 0, Excessive 0
    	Policed Statistics:
    	In: 0, Out: 0
    	ARP Statistics:
    	In: ARP requests 0, ARP responses 0
    	Errors 0, Discards 0
    	Out: ARP requests 0, ARP responses 0

#### Meaning

Table 11 lists the output fields of the show interfaces gigabitEthernet command.

Table 11: show interfaces gigabitEthernet Output Fields

Field Name | Field Description
--- | ---
GigabitEthernet or tenGigabitEthernet interfaceSpecifier | Status of the hardware on this interface: up—Hardware is operational down—Hardware is not operational
Administrative status | Operational state that you configured for this interface: up—Interface is enabled down—Interface is disabled
Hardware | Type of MAC device on this interface
Address | MAC address of the processor on this interface
MAU | Type of MAU on the primary and secondary physical ports: SFP—1000BASE-LH, 1000BASE-SX, 1000BASE-ZX; for SFPs that are empty, SFP (Empty) appears in this field; for SFPs that are installed in the OC3-2 GE APS I/O module and do not have a Juniper Networks part number programmed, SFP (GE Compliant) appears in this field XFP—10GBASE-SR (10 Gbps), 10GBASE-LR (10 Gbps), 10GBASE-ER (10 Gbps); for XFPs that are empty, XFP (Empty) appears in this field
TX Output Power | Transmitted output optical power
RX Input Power | Received input optical power
MTU | Size of the MTU for this interface: Operational—Size of the largest packet processed Administrative—Setting for MTU size that you specified
Duplex Mode | Duplex option for this interface: Operational—Duplex option currently used Administrative—Setting for duplex that you specified
Speed | Line speed for this interface: Operational—Current rate at which packets are processed Administrative—Setting for line speed that you specified
Debounce | Debounce configuration for this interface: State is—Enabled, Disabled Interval is—Number of seconds that this interface maintains a given state before the state change is reported to the upper-layer links
Clear arp | State of the removal of the ARP entries on an interface with redundant ports: Enabled—Clears ARP entries on the interface when the primary link fails Disabled—Maintains ARP entries on the interface until the specified timeout elapses
Link | Link information for this interface: Operational Link Selected—Port that the I/O module is currently using: primary or secondary Administrative link selected—Port that the I/O module is configured to use: primary—Only primary port is configured to operate secondary—Only redundant port is configured to operate automatically—Software controls port redundancy automatically
Link Failover Timeout | Time to wait for a failed link to be active before the router uses a different active link
Primary link selected x times | Number of times that the I/O has used the primary port since the module was last rebooted
Secondary link selected x times | Number of times that the I/O has used the secondary port since the module was last rebooted`
Primary/Secondary link signal detected, Primary/Secondary link signal not detected | Specifies the port (primary or secondary) on which the router detects a signal (not displayed on GE I/O modules that do not support SFPs)
5 minute input rate | Data rates based on the traffic received in the last 5 minutes
5 minute output rate | Data rates based on the traffic sent in the last 5 minutes
In | Analysis of inbound traffic on this interface: Bytes—Number of bytes received in error-free packets Unicast—Number of unicast packets received Multicast—Number of multicast packets received Broadcast—Number of broadcast packets received Errors—Total number of errors in all received packets; some packets might contain more than one error Discards—Total number of discarded incoming packets Mac Errors—Number of incoming packets discarded because of MAC sublayer failures Alignment—Number of incomplete octets received CRC—Number of packets discarded because the checksum that the router computed from the data does not match the checksum generated by the originating devices Too Longs—Number of packets discarded because the size exceeded the MTU Symbol Errors—Number of symbols received that the router did not correctly decode
Out | Analysis of outbound traffic on this interface: Bytes—Number of bytes sent Unicast—Number of unicast packets sent Multicast—Number of multicast packets sent Broadcast—Number of broadcast packets sent Errors—Total number of errors in all transmitted packets; note that some packets might contain more than one error Discards—Total number of discarded outgoing packets Mac Errors—Number of outgoing packets discarded because of MAC sublayer failures Deferred—Number of packets that the router delayed sending because the line was busy. In half duplex mode, a high number of deferrals means the link is very busy with traffic from other stations. In full duplex mode, when the link is always available for transmission, this number is zero. No Carrier—Number of packets sent when carrier sense was unavailable
Collisions | Analysis of the collisions that occurred : Single—Number of packets sent after one collision Multiple—Number of packets sent after multiple collisions Late—Number of packets aborted during sending because of collisions after 64 bytes Excessive—Number of packets not sent because of too many collisions
Policed Statistics | Number of packets that exceeded the number allowed and were policed (or dropped)
ARP Statistics | Analysis of ARP traffic on this interface; In fields are for traffic received on the interface and Out fields are for traffic sent on the interface: ARP requests—Number of ARP requests ARP responses—Number of ARP responses Errors—Total number of errors in all ARP packets Discards—Total number of discarded ARP packets
Administrative qos-shaping-mode | QoS shaping mode: disabled—Shaping mode is configured but not operational frame—Statistics are reported about bytes in frames, such as transmitted bytes and dropped bytes. cell—Shaping mode for shaping and policing rates is cell-based; resulting traffic stream conforms exactly to the policing rates configured in downstream devices. Reports statistics in bytes in cells and accounts for cell encapsulation and padding overhead. none—Shaping mode is not configured
Operational qos-shaping-mode | Actual shaping mode for the interface: disabled frame cell none
queue | Hardware packet queue associated with the specified traffic class and interface : traffic class—Name of traffic class bound to—Interface to which queue is bound Queue length—Length of the queue, in bytes Forwarded packets, bytes—Number of packets and bytes that were forwarded on this queue Dropped committed packets, bytes—Number of committed packets and bytes that were dropped Dropped conformed packets, bytes—Number of conformed packets and bytes that were dropped Dropped exceeded packets, bytes—Number of exceeded packets and bytes that were dropped

## Monitoring VLAN Statistics

#### Purpose

Display configuration and status information for a specified VLAN subinterface or for all VLAN subinterfaces configured on the router. You can use the mac-address keyword to display information about the VLAN subinterfaces that were configured with unique MAC addresses.

#### Action

To display full status and configuration information for the specified VLAN subinterface:

    host1#show vlan subinterface fastEthernet 0/0.1
        Interface       Status  MTU  Svlan Id Vlan Id Ethertype Type
    ------------------- ------ ---- -------- ------ --------- -------
    FastEthernet 0/0.1    Up    1526    1      0    0x9100    Static

    In: Bytes 39256, Packets 612
       Multicast 0, Broadcast 0
       Errors 0, Discards 0
      Out: Bytes 4538652, Packets 70911
       Multicast 0, Broadcast 70296
       Errors 0, Discards 0
    ARP Statistics:
      In: ARP requests 0, ARP responses 0
       Errors 0, Discards 0
      Out: ARP requests 0, ARP responses 0
       Errors 0, Discards 0

#### Meaning

Table 12 lists the show vlan subinterface command output fields.

Table 12: show vlan subinterface Output Fields

Field Name | Field Description
--- | ---
Interface | Type and specifier of the VLAN subinterface
Status | Status of the VLAN subinterface: up, down, dormant, lowerLayerDown, absent
MTU | Maximum allowable size (in bytes) of the MTU for the VLAN subinterface
Svlan Id | S-VLAN ID value, if configured
Vlan Id | VLAN ID value for the VLAN subinterface
Ethertype | S-VLAN Ethertype value, if configured
Type | Type of VLAN subinterface: Static—VLAN or S-VLAN subinterface was configured statically Dynamic—VLAN or S-VLAN subinterface was configured dynamically
In | Analysis of inbound traffic on this interface: Bytes—Number of bytes received on the VLAN or S-VLAN subinterface Packets—Sum of all unicast, broadcast, and multicast packets received on the VLAN or S-VLAN subinterface Multicast—Number of multicast packets received on the VLAN or S-VLAN subinterface Broadcast—Number of broadcast packets received on the VLAN or S-VLAN subinterface Errors—Total number of errors in all received packets; some packets might contain more than one error Discards—Total number of discarded incoming packets
Out | Analysis of outbound traffic on this interface: Bytes—Number of bytes sent on the VLAN or S-VLAN subinterface Packets—Number of packets sent on the VLAN or S-VLAN subinterface Multicast—Number of multicast packets received on the VLAN or S-VLAN subinterface Broadcast—Number of broadcast packets received on the VLAN or S-VLAN subinterface Errors—Total number of errors in all transmitted packets; some packets might contain more than one error Discards—Total number of discarded outgoing packets
ARP Statistics | Analysis of ARP traffic on this interface; In fields are for traffic received on the interface and Out fields are for traffic sent on the interface: ARP requests—Number of ARP requests ARP responses—Number of ARP responses Errors—Total number of errors in all ARP packets Discards—Total number of discarded ARP packets

## Monitoring IPv6 Statistics

#### Purpose

Display detailed or summary information for a particular IPv6 interface or for all IPv6 interfaces.

#### Action

To display statistics for all IPv6 interfaces:

    host1#show ipv6 interface
    null0 line protocol IpLoopback is up, ipv6 is up
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:1d44
      Unnumbered Interface: Corresponding Numbered Interface not specified or
    removed
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      Neighbor Discovery is disabled

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 0, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 0

    FastEthernet9/1.5 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop5
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31ce
      Internet address: 5:1:1::2/64
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled

      In Received Packets 13, Bytes 1356
        Unicast Packets 5, Bytes 588
        Multicast Packets 8, Bytes 768
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 22, Bytes 2480
        Unicast Packets 22, Bytes 2480
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 8, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 8

      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/1.5
        Queue length 0 bytes
        Forwarded packets 4, bytes 680
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

    FastEthernet9/0.6 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop6
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31cd
      Internet address: 6:1:1::1/64
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 8, Bytes 768
        Unicast Packets 8, Bytes 768
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 5, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 5

      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

    loopback5 line protocol IpLoopback is up, ipv6 is up
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:1d44
      Internet address: 10:1:1:0:290:1aff:fe40:1d44/64 (eui-64)
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      Neighbor Discovery is disabled

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 0, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 0

    IPv6 policy input ipv6InPol25
        rate-limit-profile Rlp2Mb classifier-group clgA entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp8Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy output ipv6PolOut2
        rate-limit-profile RlpOutA classifier-group clgB entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile RlpOutB
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy local-input ipv6PolLocIn5
        rate-limit-profile Rlp1Mb classifier-group clgC entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp5Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

To display statistics for a particular IPv6 interface:

    host1#show ipv6 interface FastEthernet 9/0.6
    FastEthernet9/0.6 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop6
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31cd
      Internet address: 6:1:1::1/64
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 8, Bytes 768
        Unicast Packets 8, Bytes 768
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 5, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 5

      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

    IPv6 policy input ipv6InPol25
        rate-limit-profile Rlp2Mb classifier-group clgA entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp8Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy output ipv6PolOut2
        rate-limit-profile RlpOutA classifier-group clgB entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile RlpOutB
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy local-input ipv6PolLocIn5
        rate-limit-profile Rlp1Mb classifier-group clgC entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp5Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0
    Http Redirect Url: http://www.juniper.net

To display detailed IPv6 status and configuration information for all IPv6 interfaces:

    host1#show ipv6 interface detail
    null0 line protocol IpLoopback is up, ipv6 is up
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:1d44

      Unnumbered Interface: Corresponding Numbered Interface not specified or
    removed
    IPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards

    ICMPv6 statistics:
      Rcvd:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies
      Sent:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies

      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      Neighbor Discovery is disabled

      ICMPv6 statistics:
        Rcvd:  0 total, 0 errors
               0 rtr solicits, 0 rtr advertisements
               0 neighbor solicits, 0 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
        Sent:  0 total, 0 errors
               0 rtr solicits, 0 rtr advertisements
               0 neighbor solicits, 0 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 0, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 0

    FastEthernet9/1.5 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop5
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31ce

      Internet address: 5:1:1::2/64
    IPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards

    ICMPv6 statistics:
      Rcvd:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             3 echo replies
      Sent:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 5 echo requests
             0 echo replies

      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface

      ICMPv6 statistics:
        Rcvd:  13 total, 0 errors
               0 rtr solicits, 8 rtr advertisements
               1 neighbor solicits, 1 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
        Sent:  31 total, 0 errors
               0 rtr solicits, 16 rtr advertisements
               5 neighbor solicits, 5 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects

      In Received Packets 13, Bytes 1356
        Unicast Packets 5, Bytes 588
        Multicast Packets 8, Bytes 768
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 22, Bytes 2480
        Unicast Packets 22, Bytes 2480
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 8, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 8

      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/1.5
        Queue length 0 bytes
        Forwarded packets 4, bytes 680
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

    FastEthernet9/0.6 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop6
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31cd

      Internet address: 6:1:1::1/64
    IPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards

    ICMPv6 statistics:
      Rcvd:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies
      Sent:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies

      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface

      ICMPv6 statistics:
        Rcvd:  0 total, 0 errors
               0 rtr solicits, 0 rtr advertisements
               0 neighbor solicits, 0 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
        Sent:  13 total, 0 errors
               0 rtr solicits, 9 rtr advertisements
               2 neighbor solicits, 2 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 8, Bytes 768
        Unicast Packets 8, Bytes 768
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 5, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 5

      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

    loopback5 line protocol IpLoopback is up, ipv6 is up
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:1d44

      Internet address: 10:1:1:0:290:1aff:fe40:1d44/64 (eui-64)
    IPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards

    ICMPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards

    ICMPv6 statistics:
      Rcvd:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies
      Sent:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             0 echo replies

      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      Neighbor Discovery is disabled

      ICMPv6 statistics:
        Rcvd:  0 total, 0 errors
               0 rtr solicits, 0 rtr advertisements
               0 neighbor solicits, 0 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
        Sent:  0 total, 0 errors
               0 rtr solicits, 0 rtr advertisements
               0 neighbor solicits, 0 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 0, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 0
    IPv6 policy input ipv6InPol25
        rate-limit-profile Rlp2Mb classifier-group clgA entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp8Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy output ipv6PolOut2
        rate-limit-profile RlpOutA classifier-group clgB entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile RlpOutB
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy local-input ipv6PolLocIn5
        rate-limit-profile Rlp1Mb classifier-group clgC entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp5Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

To display brief summary of IPv6 status and configuration information for all IPv6 interfaces:

    host1# show ipv6 interface brief
        Interface         IPv6-Address    Status  Protocol   Description
    ----------------- ------------------ ------- -------- ----------------
    null0                 Unnumbered       up      up
    FastEthernet9/1.5     5:1:1::2/64      up      up     IPv6 interface in
                                                          Virtual Router Hop
                                                                5
    FastEthernet9/0.6     6:1:1::1/64      up      up     IPv6 interface in
                                                          Virtual Router Hop
                                                                 6
    loopback5          10:1:1:0:290:1aff:fe up      up
                       40:1d44/64

#### Meaning

Table 13 lists the show ipv6 interface command output fields.

Table 13: show ipv6 interface Output Fields

Field Name | Field Description
--- | ---
Description | Optional description for the interface or address specified
Network Protocols | Network protocols configured on this interface
Link local address | Local IPv6 address of this interface
Internet address | External address of this interface
IPv6 statistics Rcvd | local destination—Frames with this router as their destination hdr errors—Number of packets containing header errors addr errors—Number of packets containing addressing errors unkn proto—Number of packets received containing unknown protocols discards—Number of discarded packets
IPv6 statistics Sent | generated—Number of packets generated no routes—Number of packets that could not be routed discards—Number of packets that could not be routed that were discarded Note: If you configure the router to discard packets for static routes with null 0 interfaces as the next-hop points using the reject keyword with the ipv6 route command, the value displayed in this field also includes the packets that reached the null 0 interface and were dropped.
ICMPv6 statistics Rcvd | total—Total number of received packets errors—Error packets received destination unreach—Packets received with destination unreachable admin unreach—Packets received because the destination was administratively unreachable (for example, the packet encountered a firewall filter) parameter problem—Packets received with parameter errors time exceeded—Packets received with time-to-live exceeded pkt too big—Number of packet-too-big messages received that indicate a packet was too large to forward because of the allowed MTU size redirects—Received packet redirects echo requests—Echo request (ping) packets echo replies—Echo replies received rtr solicits—Number of received router solicitations rtr advertisements—Number of received router advertisements neighbor solicits—Number of received neighbor solicitations neighbor advertisements—Number or received neighbor advertisements Group membership (queries, responses, reductions)—Number of queries, responses, and reduction requests received from within a group to which the interface is assigned
ICMPv6 statistics Sent | total—Total number of sent packets errors—Error packets sent destination unreach—Packets sent with destination unreachable Note: If you configure the router to discard packets for static routes with null 0 interfaces as the next-hop points using the reject keyword with the ipv6 route command, the value displayed in this field also includes the number of ICMPv6 unreachable messages sent out for packets that reached null 0 interfaces with static routes. admin unreach—Packets sent because the destination was administratively unreachable (for example, due to a firewall filter) parameter problem—Packets sent with parameter errors time exceeded—Packets sent with time-to-live exceeded pkt too big—Number of packet-too-big messages sent because a received packet was too large to forward because of the allowed MTU size redirects—Sent packet redirects echo requests—Echo request (ping) packets echo replies—Echo replies sent rtr solicits—Number of sent router solicitations rtr advertisements—Number of sent router advertisements neighbor solicits—Number of sent neighbor solicitations neighbor advertisements—Number of sent neighbor advertisements Group membership (queries, responses, reductions)—Number of queries, responses, and reduction requests sent to a group of which the interface is assigned
Operational MTU | Value of the MTU
Administrative MTU | Value of the MTU if it has been administratively overridden using the configuration
Operational speed | Speed of the interface
Administrative speed | Value of the speed if it has been administratively overridden using the configuration
Creation type | Method by which the interface was created (static or dynamic)
HTTP Redirect Url | URL to which a subscriber’s initial web browser session is redirected
ND reachable time | Amount of time (in milliseconds) that the neighbor is expected to remain reachable
ND duplicate address detection attempts | Number of times that the router attempts to determine a duplicate address
ND neighbor solicitation retransmission interval | Interval in which the router retransmits neighbor solicitations
ND proxy | Indicates whether the router will reply to solicitations on behalf of a known neighbor
ND RA source link layer | Indicates whether the RA includes the link layer
ND RA interval | Interval (in seconds) of the neighbor discovery router advertisement
ND RA lifetime | Lifetime (in seconds) of the neighbor discovery router advertisement
ND RA managed flag | State of the neighbor discovery router advertisement managed flag
ND RA other config flag | State of the neighbor discovery router advertisement other config flag
ND RA advertising prefixes | Configured advertisement prefixes for neighbor discovery router advertisement
In Received Packets, Bytes | Total number of packets and bytes received on this interface: Unicast Packets, Bytes—Unicast packets and bytes received on the IPv6 interface; link-local received multicast packets (non-multicast-routed frames) are counted as unicast packets Multicast Packets, Bytes—Multicast packets and bytes received on the IPv6 interface which are then multicast-routed are counted as multicast packets
In Total Dropped Packets, Bytes | Total number of inbound packets and bytes dropped on this interface: In Policed Packets—Packets that were received and dropped on the interface for any of the following reasons: exceeding the token bucket limit, exceeding the rate limit, a drop action in a policy, discarded MAC validation packets, a destination address lookup failure, or when the destination address is an IP interface that has a route configured to the null 0 interface. In Invalid Source Address Packets—Packets received with invalid source address (for example, spoofed packets) In Error Packets—Number of packets received with errors In Discarded Packets—Packets received that were discarded for reasons other than rate limits, errors, and invalid source address
Out Forwarded Packets, Bytes | Total number of packets and bytes that were sent from this interface: Unicast Packets, Bytes—Unicast packets and bytes that were sent from this interface Multicast Routed Packets, Bytes—Multicast packets and bytes that were sent from this interface
Out Total Dropped Packets | Total number of outbound packets and bytes dropped by this interface: Out Scheduler Dropped Packets, Bytes—Number of outbound packets and bytes dropped by the scheduler Out Policed Packets, Bytes—Number of outbound packets and bytes dropped because of rate limits Out Discarded Packets—Number of outbound packets that were discarded for reasons other than those dropped by the scheduler and those dropped because of rate limits
IPv6 policy | Type (input, output, local-input) and name of policy: rate-limit-profile—Name of profile classifier-group entry—Entry index Committed—Number of packets and bytes conforming to the committed access rate Conformed—Number of packets and bytes that exceed the committed access rate but conform to the peak access rate Exceeded—Number of packets and bytes exceeding the peak access rate
queue, traffic class, bound to ipv6 | Queue and traffic class bound to the specified IPv6 interface: Queue length—Number of bytes in queue Dropped committed packets, bytes—Total number of committed packets and bytes dropped by this interface Dropped conformed packets, bytes—Total number of conformed packets and bytes dropped by this interface Dropped exceeded packets, bytes—Total number of exceeded packets and bytes dropped by this interface

## Monitoring MLD Statistics

#### Purpose

Display MLD information for interfaces on which you enabled MLD.

#### Action

To display statistics, including hardware multicast packet replication status, for all IPv6 interfaces on which you enabled MLD:

    host1:boston#show ipv6 mld interface

    Interface ATM2/0.103 address 13.0.0.1/255.255.255.0
    Administrative state enabled, Operational state enabled
    Interface parameters:
        Version 2
        State Querier
        Query Interval 125 secs, 125 secs before the next query
        Other querier present interval 250 secs
        Maximum response time 255 (in 10ths of a second)
        Last member query interval 10 (in 10ths of a second)
        Robustness 3
        No inbound access group
        No inbound access source-group
        No inbound apply-oif-map
        Immediate Leave: disabled
    Explicit Host Tracking: enabled
    Max-Group limit: No Limit
    Admission-Bandwidth limit: No limit
    IOA Packet Replication: None
        Group Count: 1
    Interface statistics:
        Rcvd: 2 reports, 0 leaves, 0 wrong version queries
        Sent: 2 queries
        Groups learnt: 1

    Counts: 0 down, 0 init state, 1 querier, 0 non-querier, 1 Total

To display statistics, including hardware multicast packet replication status, for a particular IPv6 interface on which you enabled MLD:

    host1#show ipv6 mld interface gigabitEthernet 3/0.0
    Interface GigabitEthernet3/0.0 address 10.1.1.1/255.255.255.0
    Administrative state enabled, Operational state enabled
    Interface parameters:
        Version 1
        State Querier
        Query Interval 125 secs, 123 secs before the next query
        Other querier present interval 250 secs
        Maximum response time 100 (in 10ths of a second)
        Last member query interval 10 (in 10ths of a second)
        Robustness 3
        No inbound access group
        No inbound access source-group
        No inbound apply-oif-map
        Immediate Leave: disabled
    Explicit Host Tracking: enabled
    Max-Group limit: No Limit
        Group Count: 0
        IOA packet replication gigabitEthernet 3/8.1
    Interface statistics:
        Rcvd: 0 reports, 0 leaves, 0 wrong version queries
        Sent: 14 queries
        Groups learnt: 0

    Counts: 0 down, 0 init state, 1 querier, 0 non-querier, 1 Total

#### Meaning

Table 14 lists the show ipv6 mld interface command output fields.

Table 14: show ipv6 mld interface Output Fields

Field Name | Field Description
--- | ---
Interface | Type of interface and interface specifier. For details about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide.
address | IPv6 link-local address of the interface
Administrative state | Status of the interface in the software: enabled or disabled
Operational state | Physical status of the interface: enabled or disabled
Version | MLD version
State | Function of the interface: querier or nonquerier
Query Interval | Time interval at which this interface sends query messages
Other querier present interval | Time that the interface waits before declaring itself as the querier
Maximum response time | Time interval during which this interface expects a host to respond
Graceful restart | Status of graceful restart: active or complete
Last member query interval | Time that this interface waits before sending a new query to a host that sends a group leave message
Robustness | Number of times this interface sends MLD messages
Inbound access group | Information about IPv6 access lists configured with the ipv6 mld access-group command
No inbound access group | No IPv6 access list configured with the ipv6 mld access-group command
Inbound access source-group | Information about IPv6 access lists configured with the ipv6 mld access-source-group command
No inbound access source-group | No IPv6 access list configured with the ipv6 mld access-source-group command
Inbound apply-oif-map | Information about OIF map names configured with the ipv6 mld apply-oif-map command
No inbound apply-oif-map | No OIF map name configured with the ipv6 mld apply-oif-map command
Immediate Leave | Setting of the ipv6 mld immediate-leave command: enabled or disabled
Explicit Host Tracking | Setting of the ipv6 mld explicit-tracking command: enabled or disabled
Max-Group limit | Number of MLD groups that the interface can accept, as configured with the ipv6 mld group limit command
Group Count | Number of MLD groups that the interface has accepted
IOA packet replication | Hardware multicast packet replication interface to which egress multicast packets on this interface are redirected
Interface statistics Rcvd | Information about MLD messages received on this interface: reports—Number of group multicast listener reports received leaves—Number of group multicast listener done messages received wrong version queries—Number of multicast listener queries received from devices running a different version of MLD Interface statistics Sent—Number of MLD messages this interface has sent Interface statistics Groups learnt—Number of groups this interface has discovered
Counts | Total number of MLD interfaces

#### Related Documentation

- Configuring IPv6 Hardware Multicast Packet Replication
- show interfaces
- show ipv6 interface
- show ipv6 mld interface
- show vlan subinterface