DELL 9.8(0.0) User Manual

Field

Description

Path

Lists all the ASs the dampened route passed through to 
reach the destination network.

Example

Dell#show ip bgp dampened-paths

BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0

BGP local router ID is 192.168.11.5

Status codes: s suppressed, S stale, d dampened, h history, * 

valid, > best

Path source: I - internal, a - aggregate, c - confed-external, 

r - redistributed

             n - network,  D - denied,  S - stale

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

    Network            From            Reuse     Path

d   55.0.0.0/24      172.16.0.2             00:36:23      200

Dell#

BGP Extended Communities (RFC 4360)

BGP Extended Communities, as defined in RFC 4360, is an optional transitive BGP attribute.
BGP Extended Communities provides two major advantages over Standard Communities:

• The range is extended from 4-octet (AA:NN) to 8-octet (Type:Value) to provide enough number 

communities.

• Communities are structured using a new “Type” field (1 or 2-octets), allowing you to provide granular 

control/filter routing information based on the type of extended communities.

set extcommunity rt

To set Route Origin community attributes in Route Map, use this feature.

S4820T

Syntax

set extcommunity rt {as4 ASN4:NN [non-trans] | ASN:NNNN [non-
trans] | IPADDR:NN [non-trans]} [additive]
To delete the Route Origin community, use the no set extcommunity 
command.

Parameters

as4 ASN4:NN

Enter the keyword as4 then the 4-octet AS specific 
extended community number in the format ASN4:NN (4-
byte AS number:2-byte community value).

Enter the 2-octet AS specific extended community number 
in the format ASN:NNNN (2-byte AS number:4-byte 
community value).

528

Border Gateway Protocol