Monitoring RSVP-TE Hello Adjacency Instances
Purpose
Display summary or detailed information about RSVP-TE hello adjacency instances.
Action
To display summary information about RSVP-TE hello adjacency instances:
host1#show mpls rsvp hello instance Up – neighbor is up GR – graceful restart is in progress Peer Address Interface Interval Miss Limit State -------- --------- -------- ---------- ------ 10.1.1.2 ATM6/1.1 10000 4 Up 10.3.1.2 ATM6/0.3 10000 4 GR
The following output shows that the two peers are identified as RSVP-TE node hellos peers:
host1#show mpls rsvp hello instance Up – neighbor is up GR – graceful restart is in progress Peer Address Interface Interval Miss Limit State -------- --------- -------- ---------- ------ 10.1.1.2 <any> 10000 4 Up 10.3.1.2 <any> 10000 4 GR 11.2.3.1 Atm3/1.3 10000 4 GR
To display detailed information about RSVP-TE hello adjacency instances:
host1#show mpls rsvp hello instance detail Neighbor 10.1.1.2 on interface ATM6/1.1 Local Address 10.1.1.1 Restart Time: 60000 msecs Recovery Time: 120000 msecs State: Up SrcInstance 0x4379F084 DstInstance 0x4379EA19 Interval : 10000 Miss Limit : 4 Hellos Sent : 0 Hellos Received : 382 Hellos Suppressed : 381 Hello Acks Sent : 382 Hello Acks Received : 0
Meaning
Table 1 lists the show mpls rsvp hello instance command output fields.
Table 1: show mpls rsvp hello instance Output Fields
Field Name | Field Description |
|---|---|
Peer Address | Address of the peer in the RSVP-TE hello adjacency |
Interface | Specifier and status of each interface |
any | Identifies an RSVP-TE node hello peer |
Interval | Interval at which hellos are sent to the neighbor, in milliseconds |
Miss Limit | Number of hello messages from the neighbor that can be missed before the adjacency is considered to be down |
State | State of the adjacency with the neighbor |
AdjLost | Adjacency has been lost. Hellos were received from the peer but have timed out. The peer is known to be capable of graceful restart, so the router is waiting for hellos to resume from the peer. The router is actively sending hellos to the peer. The router declares the peer to be dead if it does not receive hellos from the peer during the peer’s advertised recovery period. The router declares the peer to be gracefully restarting if hellos are seen from the peer and its sequence number has changed. The router declares the peer to be up if hellos are seen from the peer and its sequence number has not changed. |
Dead | Hellos were received from the peer but have timed out. The router is not in graceful restart helper mode. The router changes the local hello sequence number and does not send hellos to the peer. The router transitions to Down if new control traffic needs to be sent to the peer or if the peer starts sending control traffic. |
Down | No hellos have been received from the peer. The router is actively sending hellos to the peer. |
GR | Graceful restart in progress. The hello sequence number from the peer changed. The router is in graceful restart helper mode and actively sending hellos to the peer. |
Up | Hellos were received from the peer. The router is actively sending hellos to the peer. |
Neighbor | IP address of remote hello adjacency peer |
Local Address | IP address of the local hello adjacency peer |
Restart Time | Graceful restart time, in milliseconds |
Recovery Time | Graceful restart recovery time, in milliseconds |
SrcInstance | Nonzero 32-bit value that represents the sender's hello instance. The value is maintained on a per-neighbor basis. This instance value changes only when the sending peer resets, when the sender’s router reboots, or when communication is lost between the hello adjacency peers. |
DstInstance | 32-bit SrcInstance value most recently received from hello adjacency peer; value is zero when no instance has been received from that peer |
Hellos Sent | Number of hello messages sent |
Hellos Received | Number of hello messages received |
Hellos Suppressed | Number of hello messages suppressed; message generation is suppressed when a hello request object is received from the destination node within the hello interval |
Hellos Acks Sent | Number of acknowledgments sent in response to hello requests received |
Hellos Acks Received | Number of acknowledgments received in response to hello requests sent |
