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MSDP Total Source-Active Cache - 8 entries

MSDP matched 8 entries

(Source, Group) Origin RP Pro AS Uptime Expires

(10.110.3.100, 225.1.1.0) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 225.1.1.1) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 225.1.1.2) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 225.1.1.3) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 226.1.1.0) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 226.1.1.1) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 226.1.1.2) 1.1.1.1 ? ? 02:03:30 00:05:31

(10.110.3.100, 226.1.1.3) 1.1.1.1 ? ? 02:03:30 00:05:31

# View the (S, G) entries cached in the SA cache on Switch D.

[SwitchD] display msdp sa-cache

MSDP Source-Active Cache Information of VPN-Instance: public net

MSDP Total Source-Active Cache - 4 entries

MSDP matched 4 entries

(Source, Group) Origin RP Pro AS Uptime Expires

(10.110.3.100, 226.1.1.0) 1.1.1.1 ? ? 00:32:53 00:05:07

(10.110.3.100, 226.1.1.1) 1.1.1.1 ? ? 00:32:53 00:05:07

(10.110.3.100, 226.1.1.2) 1.1.1.1 ? ? 00:32:53 00:05:07

(10.110.3.100, 226.1.1.3) 1.1.1.1 ? ? 00:32:53 00:05:07

Troubleshooting MSDP

MSDP peers stay in down state

Symptom

The configured MSDP peers stay in the down state.

Analysis

• A TCP connection–based MSDP peering relationship is established between the local interface

address and the MSDP peer after the configuration.

• The TCP connection setup will fail if there is a consistency between the local interface address and

the MSDP peer address configured on the switch.

• If no route is available between the MSDP peers, the TCP connection setup will also fail.

Solution

1. Verify that a route is available between the devices. Use the display ip routing-table command to

determine whether the unicast route between the devices is correct.

2. Verify that a unicast route is available between the two devices that will become MSDP peers to

each other.

3. Verify the interface address consistency between the MSDP peers. Use the display current-

configuration command to verify that the local interface address and the MSDP peer address of the

remote switch are the same.

Questions and Answers:

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HP A5500 SI Switch Series Specifications

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