Bgp Extended Communities (Rfc 4360); Set Extcommunity Rt - Dell S4810 Reference Manual

d
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.
S4810
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
ASN:NNNN
IPADDR:NN
additive
non-trans
Defaults none
Command ROUTE MAP (config-route-map)
Modes
Command
This guide is platform-specific. For command information about other platforms,
History
refer to the relevant Dell Networking OS Command Line Reference Guide.
Border Gateway Protocol
55.0.0.0/24 172.16.0.2
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).
Enter the IP address specific extended community in the
format IPADDR:NN (4-byte IPv4 Unicast Address:2-byte
community value).
(OPTIONAL) Enter the keyword additive to add to the
existing extended community.
(OPTIONAL) Enter the keywords non-trans to indicate a
non-transitive BGP extended community.
00:36:23 200
491