Troubleshooting routing policy configuration, Ipv4 routing information filtering failure, Symptom – H3C Technologies H3C S10500 Series Switches User Manual

Page 382: Analysis, Solution, Ipv6 routing information filtering failure

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Status codes: * - valid, > - best, d - damped,

h - history, i - internal, s - suppressed, S - Stale

Origin : i - IGP, e - EGP, ? - incomplete

Network NextHop MED LocPrf PrefVal Path/Ogn

*> 4.4.4.0/24 1.1.3.1 0 300 100i

*> 5.5.5.0/24 1.1.3.1 0 300 100i

*> 6.6.6.0/24 1.1.3.1 0 300 100i

The output shows that Switch D has learned only routes 4.4.4.0/24, 5.5.5.0/24, and 6.6.6.0/24 from
AS 100.

Troubleshooting routing policy configuration

IPv4 routing information filtering failure

Symptom

The routing protocol is running properly, but filtering routing information failed.

Analysis

At least one item of the IP prefix list must be configured as permit mode, and at least one node in the

routing policy must be configured as permit mode.

Solution

1.

Use the display ip ip-prefix command to display IP prefix list information.

2.

Use the display route-policy command to display routing policy information.

IPv6 routing information filtering failure

Symptom

The routing protocol is running properly, but filtering routing information failed.

Analysis

At least one item of the IPv6 prefix list must be configured as permit mode, and at least one node of the

routing policy must be configured as permit mode.

Solution

1.

Use the display ip ipv6-prefix command to display IP prefix list information.

2.

Use the display route-policy command to display routing policy information.

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