Monitoring VRF Interfaces

Purpose

Display information about the interfaces associated with VRFs.

Action

To display information about the interfaces associated with the specified VRFs:

host1#show ip interface vrf vpn1
null0 is up, line protocol is up
  Network Protocols: IP
  Internet address is 255.255.255.255/255.255.255.255
  Broadcast address is 255.255.255.255
  Operational MTU = 1500  Administrative MTU = 0
  Operational speed = 100000000  Administrative speed = 0
  Discontinuity Time = 0
  Router advertisement = disabled
  Administrative debounce-time = disabled
  Operational debounce-time    = disabled
  Access routing = disabled
  Multipath mode = hashed
atm4/0.77 is up, line protocol is up
  Network Protocols: IP
  Internet address is 7.8.7.7/255.255.255.0
  Broadcast address is 255.255.255.255
  Operational MTU = 9180  Administrative MTU = 0
  Operational speed = 155520000  Administrative speed = 0
  Discontinuity Time = 0
  Router advertisement = disabled
  Administrative debounce-time = disabled
  Operational debounce-time    = disabled
  Access routing = disabled
  Multipath mode = hashed
  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
  Out Forwarded Packets 0, Bytes 0
    Unicast Packets 0, Bytes 0
    Multicast Packets 0, Bytes 0
  Out Scheduler Drops Committed Packets 0, Bytes 0
  Out Scheduler Drops Conformed Packets 0, Bytes 0
  Out Scheduler Drops Exceeded  Packets 0, Bytes 0
  Out Policed Packets 0, Bytes 0

To display brief information about the interfaces associated with the VRFs:

host1#show ip interface vrf vpn1 brief
Interface              IP-Address     Status Protocol Description
null0                  255.255.255.255  up         up
atm4/0.77              7.8.7.7          up         up 

Meaning

Table 96 lists the show ip interface vrf command output fields.

Table 96: show ip interface vrf Output Fields

Field Name

Field Description

Network Protocols

Type of network protocol configured

Broadcast address

IP address of the subnet

interface

Interface type and interface specifier

interface status

Status of the interface

Protocol Description

Status of the protocol

line protocol

Status of the line protocol

Link up/down trap

Status of SNMP link up/down traps on the interface

Internet address

IP address of the interface

Operational MTU

Actual MTU for the interface

Administrative MTU

Configured MTU for the interface

Operational speed

Actual speed

Administrative speed

Configured speed

Discontinuity Time

Value of sysUpTime the last time the integrity of the interface statistics was compromised

Router advertisement

Whether routes are advertised; enabled or disabled

Administrative debounce-time

Configured debounce behavior, enabled or disabled.

  • Enabled—Indicates time in milliseconds that the router waits before generating an up or down event in response to a state change in the interface.
  • If the state changes back before the debounce timer expires, no state change is reported.

Operational debounce-time

Current debounce behavior, enabled or disabled.

  • If enabled, indicates time in milliseconds that the router waits before generating an up or down event in response to a state change in the interface.
  • If the state changes back before the debounce timer expires, no state change is reported.

Access routing

When enabled, an access route is installed to the host on the other end of the interface

Multipath mode

Algorithm used for ECMP: hashing of destination address and source address, or round-robin

In Received Packets, Bytes

Total number of packets and bytes received on an IP interface

  • Unicast—Number of unicast packets and bytes received on an IP interface
  • Multicast—Number of multicast packets and bytes received on an IP interface

In Policed Packets, Bytes

Number of packets and bytes discarded on a receive IP interface because of token bucket limiting

In Error Packets

Number of packets discarded on a receive IP interface because of IP header errors

In Invalid Source Address Packets

Number of packets discarded on a receive IP interface because of invalid IP source address (sa-validate enabled)

Out Forwarded Packets, Bytes

Number of packets and bytes forwarded out an IP interface

  • Unicast—Number of unicast packets and bytes forwarded out an IP interface
  • Multicast—Number of multicast packets and bytes forwarded out an IP interface

Out Scheduler Drops Committed Packets, Bytes

Number of committed packets and bytes dropped because of out queue threshold limit

Out Scheduler Drops Conformed Packets, Bytes

Number of conformed packets and bytes dropped because of out queue threshold limit

Out Scheduler Drops Exceeded Packets, Bytes

Number of exceeded packets and bytes dropped because of out queue threshold limit

Out Policed Packets, Bytes

Number of packets and bytes discarded on a forwarding IP interface because of token bucket limiting

Related Documentation