Manual background

BGP: Configuring AS Path Filters

BGP table, the AS Path for the learnt routes is shown as "SEQ 34567". This entry is inserted into the AS-Path of the updates after they have passed through the filter.

BGP route table

Flags: >=Best route for the given prefix, *=Unreachable next hop, W=Withdrawn

m=Community, a=Aggregate route, s=Aggregate Suppressed, D=Damped Learned from: L=Local, e=eBGP Peer, i=iBGP Peer, c=Confederate

Peer

---------------------------------------------------------------------

Fl Prefix

Next hop

Origin

MED

Local pref

Path

 

 

 

 

Originator

Cluster List

 

 

 

---------------------------------------------------------------------

> 45.0.0.0/8

0.0.0.0

IGP

-

100

EMPTY

 

 

 

 

L -

-

 

 

 

> 45.45.45.0/24

45.45.45.45

INCOMPLETE

-

100

SEQ 34567;

 

 

 

 

e -

-

 

 

 

> 52.0.0.0/8

0.0.0.0

IGP

-

100

EMPTY

 

 

 

 

L -

-

 

 

 

> 64.0.0.0/4

45.45.45.45

INCOMPLETE

-

100

SEQ 34567;

 

 

 

 

e -

-

 

 

 

---------------------------------------------------------------------

Use Route Maps and Other Filters to Filter and Alter BGP and OSPF Routes Page 21

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Allied Telesis X8100, x908 manual BGP Configuring AS Path Filters

X8100, x908 specifications

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