Change PrefVal of Specific Routes

Herediano · Created Aug 18, 2020 17:30:45

Hi,

You can use a route-policy that matches the routes you want with an ip-prefix:
https://support.huawei.com/enterprise/en/doc/EDOC1100127058/c2e927da/optional-configuring-an-if-match-clause
https://support.huawei.com/enterprise/en/doc/EDOC1100127058?section=j0gh

ip ip-prefix example index 10 permit x.x.x.x x
route-policy example permit node 10
if-match ip ip-prefix example
apply pref/localpref x
route-policy example permit node 20 "required to allow other routes that doesn't matched with the ip-prefix"

bgp x
peer x.x.x.x route-policy example inbound

Instead of the PrefVal I suggest you to use the local preference value so the change could be propagated to the IBGP peers as well.

Gustavo.HdezF · Created Aug 18, 2020 15:32:43

Hello User. We are reviewing your question and we will answer you shortly. Thanks.

Herediano · Created Aug 18, 2020 17:30:45

Hi,

You can use a route-policy that matches the routes you want with an ip-prefix:
https://support.huawei.com/enterprise/en/doc/EDOC1100127058/c2e927da/optional-configuring-an-if-match-clause
https://support.huawei.com/enterprise/en/doc/EDOC1100127058?section=j0gh

ip ip-prefix example index 10 permit x.x.x.x x
route-policy example permit node 10
if-match ip ip-prefix example
apply pref/localpref x
route-policy example permit node 20 "required to allow other routes that doesn't matched with the ip-prefix"

bgp x
peer x.x.x.x route-policy example inbound

Instead of the PrefVal I suggest you to use the local preference value so the change could be propagated to the IBGP peers as well.

Popeye_Wang · Created Aug 19, 2020 01:21:46

Hi,

Currently, the peer route-policy command cannot be used to apply a route-policy to set preferences for BGP routes.
You can use the preference command + route-policy to set preferences only for the routes received from peers, which meet the matching rules. The routes that do not meet the rules use the default preference.

For details, please refer to:https://support.huawei.com/hedex/hdx.do?docid=EDOC1100101074&id=EN-US_CLIREF_0177115909&lang=en

Change PrefVal of Specific Routes

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Change PrefVal of Specific Routes

Best answer

Recommended answer

Third Party’s Trade Secret

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