# Monitoring Interfaces and Policy Lists

#### Purpose

Display information about an interface and its policy lists. The delta keyword displays baselined statistics and the brief keyword displays the operational status of all configured interfaces

#### Action

To display information about interfaces and policy lists:

| Note: For tunnel interfaces, the packets field under the IP policy output section in the output of the show ip interfaces command displays the number of fragments or packets sent out from the tunnel interface for which an output policy is attached, depending on whether you enabled preservation of output policy statistics using the enable-frag-stats command. Although this field displays the unit of measure as packets, it denotes the number of fragments if statistics generation for output policies based on fragments is enabled. Otherwise, this field indicates the number of output policed packets on the tunnel interface.

    host1#show interfaces fastEthernet 1/0.1
    FastEthernet1/0.1 is Up, Administrative status is Up
      VLAN ID: 100

      In: Bytes 4156, Packets 30
       Errors 0, Discards 0
      Out: Bytes 6406, Packets 45
       Errors 0, Discards 0

    VLAN policy input vlanPol1
      classifier-group vlan20 entry 1
        5 packets, 730 bytes
        filter

    host1#show ip interfaces atm 5/0.2
    ATM5/0.2 line protocol Atm1483 is down, ip is down (ready)
      Network Protocols: IP
      Internet address is 2.2.2.2/255.255.255.255
      Broadcast address is 255.255.255.255
      Operational MTU = 0  Administrative MTU = 0
      Operational speed = 100000000  Administrative speed = 0
      Discontinuity Time = 0
      Router advertisement = disabled
      Proxy Arp = disabled
      Network Address Translation is disabled
      TCP MSS Adjustment = disabled
      Administrative debounce-time = disabled
      Operational debounce-time    = disabled
      Access routing = disabled
      Multipath mode = hashed
      Auto Configure = disabled
      Auto Detect = disabled
      Inactivity Timer = disabled

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Policed Packets 0, Bytes 0
      In Error Packets 0
      In Invalid Source Address Packets 0
      In Discarded Packets 0
      Out Forwarded Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Routed Packets 0, Bytes 0
      Out Scheduler Dropped Packets 0, Bytes 0
      Out Policed Packets 0, Bytes 0
      Out Discarded Packets 0

      IP policy input P
        classifier-group data entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpData
               committed rate: 10000 bps, committed burst: 8192 bytes (default)
               peak Rate: 100000 bps, peak burst: 1875 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop
        classifier-group voice entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpVoice
               committed rate: 64000 bps, committed burst: 100000 bytes (default)
               peak Rate: 100000 bps, peak burst: 1875 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop
        classifier-group video entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpVideo
               committed rate: 70000 bps, committed burst: 875 bytes
               peak Rate: 100000 bps, peak burst: 1875 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop
      IP policy output P
        classifier-group data entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpData
               committed rate: 20000 bps, committed burst: 150 bytes
               peak Rate: 200000 bps, peak burst: 3750 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop
        classifier-group voice entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpVoice
               committed rate: 64000 bps, committed burst: 100000 bytes
               peak Rate: 200000 bps, peak burst: 3750 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop
        classifier-group video entry 1
          0 packets, 0 bytes
          rate-limit-profile rlpVideo
               committed rate: 140000 bps, committed burst: 850 bytes
               peak Rate: 200000 bps, peak burst: 3750 bytes
            committed: 0 packets, 0 bytes, action: transmit
            conformed: 0 packets, 0 bytes, action: transmit
            exceeded:  0 packets, 0 bytes, action: drop

#### Meaning

Table 37 lists the show interfaces command output fields.

Table 37: show interfaces Output Fields

Field Name | Field Description
--- | ---
Subinterface number | Location of the subinterface that carries the VLAN traffic
Administrative status | Operational state that you configured for this interface: up or down
VLAN ID | Domain number of the VLAN
In Bytes | Number of bytes received on the VLAN subinterface
In Packets | Sum of all unicast, broadcast, and multicast packets received on the VLAN or S-VLAN subinterface
In Errors | Value is always 0 (zero)
In Discards | Value is always 0 (zero)
Out Bytes | Number of bytes sent on the VLAN or stacked VLAN (S-VLAN) subinterface
Out Packets | Number of packets sent on the VLAN or S-VLAN subinterface
Out Errors | Value is always 0 (zero)
Out Discards | Value is always 0 (zero)
VLAN policy | Type and name of the VLAN policy

#### Related Documentation

- show interfaces