Monitoring Ethernet Interfaces
This section explains how to set a statistics baseline, display bit rate and packet rate statistics for VLAN subinterfaces, and use the show commands to display the physical characteristics and the configured settings for Ethernet interfaces.
Setting Statistics Baselines
The router stores statistics in counters that reset only when you reboot. However, you can establish a baseline for Ethernet statistics by setting a group of reference counters to zero.
baseline interface fastEthernet | gigabitEthernet | tenGigabitEthernet
- Use to establish a baseline for Fast Ethernet, Gigabit Ethernet, or 10-Gigabit Ethernet statistics on a line module or an SRP module.
- Use the delta keyword with the show interfaces fastEthernet, the show interfaces gigabitEthernet, or the show interfaces tenGigabitEthernet command to display baselined statistics.
Displaying Interface Rate Statistics for VLAN Subinterfaces
You can use the monitor vlan interface command to display bit rate and packet rate statistics over a specified time interval for one or more VLAN subinterfaces configured on the router.
To display interface rate statistics for VLAN subinterfaces:
- Log in to the router by using a local console session or a virtual terminal (vty) session (such as a Telnet session).
While you are using the monitor vlan interface command, you must keep the console or terminal session open and you cannot issue any other commands at the session during this time.
For information about logging in to the router, see Accessing the CLI in JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.
For information, see Accessing Command Modes in JUNOSe System Basics Configuration Guide, Chapter 2, Command-Line Interface.
- Specify the interface identifier for each VLAN subinterface that you want to monitor.
host1#monitor vlan interface fastEthernet 0/0.1 fastEthernet 4/0.1 display-time-of-day
For information about specifying interface identifiers for VLAN subinterfaces configured over Ethernet interfaces, see Configuring VLANs. For information about specifying interface identifiers for VLAN subinterfaces configured over LAG bundles, see Configuring a VLAN Subinterface for a LAG Bundle.
By default, the router uses a 5-second time interval between polls to calculate bit rates and packet rates for each specified VLAN subinterface. Optionally, you can use the load-interval keyword to specify a nondefault time interval in the range 5–30 seconds.
You can also include the optional display-time-of-day keyword to show the time of day at which the router gathers statistics for each interval. Displaying the time of day enables you to monitor when a particular VLAN subinterface is underutilized or overutilized.
- Review the command output.
host1#monitor vlan interface fastEthernet 0/0.1 fastEthernet 4/0.1 display-time-of-day
Seconds
between Time
Interface polls Input bps/pps Output bps/pps (UTC)
----------------------- -------- --------------- --------------- --------
FastEthernet 0/0.1 0 --/-- --/-- 10:50:07
FastEthernet 4/0.1 0 --/-- --/-- 10:50:07
FastEthernet 0/0.1 5 120240/100 120240/100 10:50:12
FastEthernet 4/0.1 5 120000/100 120000/100 10:50:12
FastEthernet 0/0.1 5 120240/100 120240/100 10:50:17
FastEthernet 4/0.1 5 120000/100 120000/100 10:50:17
The router polls each VLAN subinterface at the specified load interval (the default 5-second interval in this example) to calculate and display bit rate and packet rate statistics. The first line of output for each interface always displays 0 (zero) for the number of seconds between polls, and dashes (--/--) in the Input bps/pps and Output bps/pps columns. These values indicate that the router initially takes a baseline for each interface against which to measure subsequent statistics. The router continues to display subsequent lines of output for each interface at the specified load interval until you press Ctrl+c to stop the command.
For a description of each field in the monitor vlan interface command output, see monitor vlan interface.
monitor vlan interface
- Use to display bit rate and packet rate statistics over a specified time interval for one or more VLAN subinterfaces.
- You must use the monitor vlan interface command in a dedicated console or terminal session for the duration of the monitoring session.
- Specify the interface identifier for each VLAN subinterface that you want to monitor.
- To specify a nondefault time interval in the range 5–30 seconds at which the router calculates bit rate and packet rate statistics, use the optional load-interval keyword. The default time interval is 5 seconds.
- To display the time at which the router calculates bit rate and packet rate statistics for the current interval, use the optional display-time-of-day keyword.
- To stop the monitor vlan interface command, press Ctrl+c.
- Field descriptions
- Interface—Interface identifier for the Ethernet or LAG interface on which the VLAN subinterface resides
- Seconds between polls—Number of seconds at which the router calculates bit rate and packet rate statistics
- Input bps/pps—Number of bits per second (bps) and packets per second (pps) received on this interface during the specified load interval
- Output bps/pps—Number of bits per second (bps) and packets per second (pps) transmitted on this interface during the specified load interval
- Time—Time of day, in hh:mm:ss format, at which the router calculates the bit rate and packet rate statistics for the current interval
- Example 1—Displays bit rate and packet rate statistics over the default (5-second) load interval for a single VLAN subinterface
host1#monitor vlan interface fastEthernet 0/0.1
Seconds
between
Interface polls Input bps/pps Output bps/pps
----------------------- -------- --------------- ---------------
FastEthernet 0/0.1 0 --/-- --/--
FastEthernet 0/0.1 5 120240/100 120240/100
FastEthernet 0/0.1 5 120000/100 120000/100
FastEthernet 0/0.1 5 92400/77 92400/77
FastEthernet 0/0.1 5 88800/74 88800/74
FastEthernet 0/0.1 5 120000/100 120000/100
host1#^C
host1#monitor vlan interface fastEthernet 0/0.1 fastEthernet 4/0.1 load-interval 10 display-time-of-day
Seconds
between Time
Interface polls Input bps/pps Output bps/pps (UTC)
----------------------- -------- --------------- --------------- --------
FastEthernet 0/0.1 0 --/-- --/-- 10:50:33
FastEthernet 4/0.1 0 --/-- --/-- 10:50:33
FastEthernet 0/0.1 10 120120/100 120120/100 10:50:43
FastEthernet 4/0.1 10 120000/100 120000/100 10:50:43
FastEthernet 0/0.1 10 120000/100 120000/100 10:50:53
FastEthernet 4/0.1 10 120000/100 120000/100 10:50:53
host1#^C
Using Ethernet show Commands
Use the show commands described in this section to display information about your Ethernet configuration and to monitor Ethernet interfaces.
show interfaces fastEthernet
- Use to display the status of Fast Ethernet interfaces, VLAN subinterfaces, or S-VLAN subinterfaces.
- You can specify the following keywords:
- delta—Specifies that baselined statistics are to be shown
- brief—Displays the operational status of all configured interfaces
- Hardware—Type of MAC device on this interface
- Address—MAC address of the processor on this interface
- MAU—Type of medium attachment unit (MAU) on the physical port:
- 10BASE-T (10 Mbps)
- 100BASE-TX (100 Mbps)
- 100BASE-FX-MM (100 Mbps) with the distance appearing after the type
- 100BASE-LX-SM (100 Mbps)
- SFP (Empty)—SFPs that are empty
- SFP (Non-compliant Juniper Part)—SFPs that are installed in the FE-8 I/O module and do not have a Juniper Networks part number programmed
- Operational—Size of the largest packet processed
- Administrative—Setting for MTU size that you specified
- Operational—Current rate at which packets are processed
- Administrative—Setting for line speed
- 5 minute input rate—Data rates based on traffic received in the last 5 minutes
- 5 minute output rate—Data rates based on traffic sent in the last 5 minutes
- 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 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
- 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; 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
- 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
- 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
- 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
- Subinterface number—Location of the subinterface that carries the VLAN or S-VLAN traffic
- Administrative status—Operational state that you configured for this interface; up or down
- VLAN ID—Domain number of the VLAN
- SVLAN ID—Domain number of the stacked VLAN
- Ethertype—Ethertype assignment for the S-VLAN subinterface, 0x8100, 0x88a8, or 0x9100; 0x9100 is the default
- 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
- 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 sent on the VLAN or S-VLAN subinterface
- Broadcast—Number of broadcast packets sent on the VLAN or S-VLAN subinterface
- 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
host1:vr2#show interfaces fastEthernet 2/0
FastEthernet2/0 is Up, Administrative status is Up
Hardware is Intel 21440, address is 0090.1a10.0552 MAU is 10BASE-T
MTU: Operational 1518, Administrative 1518
Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
Speed: Operational 100 Mbps, Administrative Auto Negotiate
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
In: Bytes 39256, Unicast 612
Multicast 0, Broadcast 0
Errors 0, Discards 0, Mac Errors 0, Alignment 0
CRC 0, Too Longs 0, Symbol Errors 0
Out: Bytes 4579036, Unicast 610
Multicast 0, Broadcast 70932
Errors 0, Discards 0, Mac Errors 0, Deferred 0, No Carrier 3
Collisions: Single 0, Multiple 0, Late 0, Excessive 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
Administrative qos-shaping-mode: none
Operational qos-shaping-mode: none
queue 0: traffic class control, bound to FastEthernet2/0
Queue length 0 bytes
Forwarded packets 1, bytes 46
Dropped committed packets 0, bytes 0
Dropped conformed packets 0, bytes 0
Dropped exceeded packets 0, bytes 0
host1:vr2#show interfaces fastEthernet 8/3.1
FastEthernet8/3.1 is Up, Administrative status is Up
VLAN ID: 10, address 0090.5e00.0001
In: Bytes 39256, Packets 612
Multicast 0, Broadcast 0
Errors 0, Discards 0
Out: Bytes 4536220, Packets 70873
Multicast 0, Broadcast 70258
Errors 0, Discards 0
ARP Statistics:
In: ARP requests 1, ARP responses 0
Errors 0, Discards 0
Out: ARP requests 1, ARP responses 0
Errors 0, Discards 0
host1:vr2#show interfaces fastEthernet 0/0.1
FastEthernet0/0.1 is Up, Administrative status is Up
SVLAN ID: 1, VLAN ID: 0, Ethertype 0x9100
In: Bytes 39256, Packets 612
Multicast 0, Broadcast 0
Errors 0, Discards 0
Out: Bytes 4536220, Packets 70873
Multicast 0, Broadcast 70258
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
show interfaces gigabitEthernet
show interfaces tenGigabitEthernet
- Use to display the status of Gigabit Ethernet interfaces, 10-Gigabit Ethernet interfaces, VLAN subinterfaces, or S-VLAN subinterfaces.
- You can specify the following keywords:
- delta—Specifies that baselined statistics are to be shown
- brief—Displays the operational status of all configured interfaces
- Hardware—Type of MAC device on this interface
- Address—MAC address of the processor on this interface
- MAU—Type of medium attachment unit (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
- Operational—Size of the largest packet processed
- Administrative—Setting for MTU size that you specified
- Operational—Current rate at which packets are processed
- Administrative—Setting for line speed that you specified
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- Field descriptions when you display the status of a Gigabit Ethernet or 10-Gigabit Ethernet VLAN or S-VLAN subinterface
- Subinterface number—Location of the subinterface that carries the VLAN or S-VLAN traffic
- Administrative status—Operational state that you configured for this interface; up or down
- VLAN ID—Domain number of the VLAN
- SVLAN ID—Domain number of the stacked VLAN
- Ethertype—Ethertype assignment for the S-VLAN subinterface, 0x8100, 0x88a8, or 0x9100; 0x9100 is the default
- 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
- 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 sent on the VLAN or S-VLAN subinterface
- Broadcast—Number of broadcast packets sent 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
host1:vr2#show interfaces gigabitEthernet 10/2
ERX-40-20-43#show int gigabitEthernet 10/2
GigabitEthernet10/2 is Down, Administrative status is Up
Hardware is SEEQ 8101, address is 0090.1a01.0cc8
Primary MAU is 1000BASE-SX, secondary MAU is SFP (Empty)
MTU: Operational 1518, Administrative 1518
Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
Speed: Operational 1000 Mbps, Administrative Auto Negotiate
Link: Operational Secondary Link Selected,
Administrative Link Selected Automatically
Link Failover Timeout: Operational 652 ms, Administrative default
Primary link selected 6302 times, Secondary link selected 6302 times
Primary link signal detected, Secondary link signal detected
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
ARP Statistics:
In: ARP requests 0, ARP responses 0
Errors 0, Discards 0
Out: ARP requests 0, ARP responses 0
Errors 0, Discards 0
Administrative qos-shaping-mode: none
Operational qos-shaping-mode: none
queue 0: traffic class control, bound to GigabitEthernet10/2
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
host1:vr2#show interfaces gigabitEthernet 2/0.1
GigabitEthernet2/0.1 is Up, Administrative status is Up
VLAN ID: 10, address 0090.5e00.0001
In: Bytes 2357, Packets 23
Multicast 0, Broadcast 0
Errors 0, Discards 0
Out: Bytes 4872, Packets 57
Multicast 0, Broadcast 0
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
host1:vr2#show interfaces gigabitEthernet 2/0.2
GigabitEthernet2/0.2 is Up, Administrative status is Up
SVLAN ID: 10, VLAN ID: 100, Ethertype 0x9100
In: Bytes 2357, Packets 23
Multicast 0, Broadcast 0
Errors 0, Discards 0
Out: Bytes 4872, Packets 57
Multicast 0, Broadcast 57
ARP Statistics:
In: ARP requests 0, ARP responses 0
Errors 0, Discards 0
Out: ARP requests 0, ARP responses 0
Errors 0, Discards 0
show interfaces lag
- Use to display information about a specified Ethernet member link in an IEEE 802.3ad link aggregation group (LAG) bundle.
- Specify either the Fast Ethernet or Gigabit Ethernet interface type when issuing this command:
host1(config):show interfaces interfaceType interfaceSpecifier lag
- Administrative status—Operational state that you configured for this interface
- Member—Membership status of the Ethernet link
- LACP—Status of LACP configuration for the Ethernet link
- active—Ethernet link participates in the protocol regardless of whether its Partner member link is set to active or passive LACP PDU participation
- passive—Ethernet link transmits LACP PDUs only when it receives LACP PDUs from its Partner member link
- collecting/distributing—Ethernet link is actively collecting incoming frames and distributing outgoing frames
- detached—Ethernet link is detached from the LAG bundle due to protocol changes or system constraints
- waiting—Ethernet link is waiting to attach to a LAG bundle
- active—Actor link actively particulates in LACP
- passive—Actor link transmits LACP PDUs
- timeout—Timeout control value; this value is not configurable and is set to long timeout (30 seconds)
- aggregatable—Actor link can be aggregated
- individual—Actor link cannot be aggregated; must operate as an individual link
- in-sync—Actor link has joined the correct LAG bundle
- out-of-sync—Actor link is unable to join the correct LAG bundle
- collecting—Actor link is actively collecting incoming frames; if this field does not appear, the Actor link is not actively collecting incoming frames
- distributing—Actor link is actively distributing outgoing frames; if this field does not appear, the Actor link is not actively distributing outgoing frames
- defaulted—Actor link is using defaulted operational information about the Partner link that was administratively configured for Partner; if this field does not appear, the operational information about the Partner link has been received by the Actor link in an LACP PDU
- expired—Actor link's receive machine is expired; if this field does not appear, the Actor link's receive machine is active
- port—Port number assigned to the Ethernet link by the Actor link
- priority—Priority assigned to this Ethernet link by the Actor link
- Key—Operational key value assigned to the Ethernet link by the Actor link
- System Priority—Priority assigned to the Ethernet link by the system
- System MAC Address—MAC address assigned to the Actor link
- Partner—Status of the Partner link
- active— Partner link participates in the LACP
- passive—Partner link transmits LACP PDUs
- timeout—Timeout control value; short timeout or long timeout
- aggregatable—Partner link can be aggregated
- individual—Partner link cannot be aggregated
- in-sync—Partner link has joined the correct LAG bundle
- out-of-sync—Partner link has joined the incorrect LAG bundle
- collecting—Partner link is actively collecting incoming frames; if this field does not appear, the Partner link is not actively collecting incoming frames
- distributing—Partner link is actively distributing outgoing frames; if this field does not appear, the Partner link is not actively distributing outgoing frames
- defaulted—Partner link is using defaulted operational information about the Partner link that was administratively configured for Partner; if this field does not appear, the operational information about the Partner link has been received by the Actor link in an LACP PDU
- expired—Partner link's receive machine is expired; if this field does not appear, the Partner link's receive machine is active
- port—Port number assigned to the Ethernet link by the Partner link
- priority—Priority assigned to the Ethernet link by the Partner link
- key—Operational key value assigned to the Ethernet link by the Partner link
- age—Number of seconds since last LACP was received
- System Priority—Priority assigned to the Ethernet link by the Partner link's system
- System MAC Address—MAC address assigned to the Partner link by the system
- LACP packets—Number of transmitted and received LACP packets
- Marker Protocol request packets—Number of Marker Protocol packets requested to verify transmissions
- Marker Protocol response packets—Number of Marker Protocol response packets that verified transmissions
- Discarded—Number of invalid LACP packets
host1#show interfaces fastEthernet 4/0 lag
FastEthernet4/0 is Up, Administrative status is Up
Member of Lag boston
LACP passive, mux state collecting/distributing
LACP state (0x3c) passive, long timeout, aggregatable, in-sync, collecting, distributing
port 0 priority 32768 key 8
System Priority 32768 System MAC Address is 0090.1a40.2043
Partner: state (0x3d) active, short timeout, aggregatable, in-sync,
collecting, distributing
port 0 priority 32768 key 8 age 25
System Priority 32768 System MAC Address is 0090.1a40.2043
LACP packets: received 8, transmitted 7
Marker Protocol request packets: received 0, transmitted 0
Marker Protocol response packets: received 0, transmitted 0
Discarded 0, unknown protocol received 0
show interfaces lag members
- Use to display information about the Ethernet member links in all IEEE 802.3ad link aggregation group (LAG) bundles configured on the router, or about the member links in a specified IEEE 802.3ad LAG bundle.
- Field descriptions
- Lag—Name of the LAG bundle
- Administrative status—Operational state that you configured for the LAG
- Member-interface—Status of the member interface in the bundle
- Interface Specifier—Status of the hardware on this interface (up or down)
- LACP active—Ethernet link participates in the protocol regardless of whether its Partner member link is set to active or passive LACP PDU participation
- LACP passive—Ethernet link transmits LACP PDUs only when it receives LACP PDUs from its Partner link
- collecting/distributing—Ethernet link is actively collecting incoming frames and distributing outgoing frames
- detached—Ethernet link is detached from the LAG bundle due to protocol changes or system constraints
- waiting—Ethernet link is waiting to attach to a LAG bundle
host1#show interfaces boston lag members
Lag bostonBundle is Up, Administrative status is Up
Member-interface FastEthernet0/0 is Up
(LACP active, state collecting/distributing)
Member-interface FastEthernet0/5 is Up
(LACP active, state collecting/distributing)
Lag actonBundle is Up, Administrative status is Up
Member-interface FastEthernet4/0 is Up
(LACP passive, state collecting/distributing)
Member-interface FastEthernet4/6 is Up
(LACP passive, state collecting/distributing)
2 lag interfaces found
show ip mac-validate interface
- Use to display the status of the MAC address validation on the physical interface.
- Field descriptions
- FastEthernet interfaceSpecifier—On the ERX-14xx models, ERX-7xx models, and ERX-310 router, the Fast Ethernet or Gigabit Ethernet interface slot/port; on the E120 and E320 routers, the Gigabit Ethernet or 10-Gigabit Ethernet interface slot/adapter/port
- Keyword assigned to interface—Options: Strict or Loose
- Address—IP address of the entry
- Hardware Addr—Physical (MAC) address of the entry
host1:boston#show ip mac-validate interface fastEthernet 11/0
FastEthernet11/0: Strict
Address Hardware Addr
3.3.3.3 0090.1a30.3365
4.4.4.4 0090.1a30.3368
show vlan subinterface
- Use to display configuration and status information for a specified VLAN subinterface or for all VLAN subinterfaces configured on the router.
- Use the summary keyword to display only the counts of all VLAN subinterfaces and VLAN major interfaces configured on the router.
- Use the mac-address keyword to display information about the VLAN subinterfaces that were configured with unique MAC addresses.
- Use the vlan or svlan keywords to display information about specific S-VLAN IDs or VLAN IDs.
- Field descriptions
- 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 maximum transmission unit (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
- 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
- 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
- Total VLAN interfaces—Total numbers of VLAN subinterfaces and VLAN major interfaces configured on the router; this is the only field that appears when you specify the summary keyword
- Example 1—Displays full status and configuration information for all VLAN subinterfaces configured on the router
host1#show vlan subinterface
Interface Status MTU Svlan Id Vlan Id Ethertype Type
------------------------- ---------- ---- -------- -------- --------- -------
ATM 3/0.1.2 Up 1522 ---- 11 ---- Static
ATM 3/0.1.3 Up 1522 ---- 12 ---- Static
ATM 3/1.1.1 Up 1522 ---- 13 ---- Static
ATM 3/1.1.2 Up 1522 ---- 14 ---- Static
ATM 3/2.1.1 Down 1526 4 255 0x9100 Static
FastEthernet 4/5.1 Up 1522 ---- 1 ---- Dynamic
6 vlan subinterfaces found
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
- Example 3—Displays only brief summary information for all VLAN subinterfaces configured on the router
host1#show vlan subinterface summary
Total VLAN interfaces: 6 subinterfaces, 3 major interfaces
host1#show vlan subinterface mac-address
Interface Svlan Id Vlan Id MAC Address
------------------------- -------- -------- --------------
FastEthernet 4/0.25 ---- 25 0090.dfad.2abd
FastEthernet 4/0.10050 1 50 0090.adad.0abd
2 vlan subinterfaces found
host1#show vlan subinterface lag boston.1
Interface Status MTU Svlan Id Vlan Id Ethertype Type
------------------------- ---------- ---- -------- -------- --------- -------
lag boston.1 Up 1522 ---- 1 ---- Static
host1#show vlan subinterface svlan 100 53
Interface Status MTU Svlan Id Vlan Id Ethertype Type
------------------------- ---------- ---- -------- -------- --------- -------
FastEthernet 0/0.1 Up 1526 100 53 0x9100 Static
FastEthernet 4/6.1 Up 1526 100 53 0x9100 Dynamic
2 vlan subinterfaces found