Reference Guide

404 | Border Gateway Protocol IPv4 (BGPv4)
www.dell.com | support.dell.com
• 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.
The BGP Extended Community commands are:
• deny
• deny regex
• description
• ip extcommunity-list
• match extcommunity
• permit
• permit regex
• set extcommunity rt
• set extcommunity soo
• show ip bgp ipv4 extcommunity-list
• show ip bgp paths extcommunity
• show ip extcommunity-list
• show running-config extcommunity-list
deny
c e s
Use this feature to reject (deny) from the two types of extended communities, Route Origin
(rt) or Site-of-Origin (soo).
Syntax
deny {rt | soo} {as4 ASN4:NN | ASN:NNNN | IPADDR:NN}
To remove (delete) the rule, use the
no deny {rt | soo} {as4 ASN4:NN | ASN:NNNN |
IPADDR:NN} command.
Parameters
Defaults
Not configured
rt
Enter the keyword rt to designate a Route Origin community
soo
Enter the keyword soo to designate a Site-of-Origin community (also known
as Route Origin).
as4 ASN4:NN
Enter the keyword as4 followed by the 4-octet AS specific extended
community number in the format ASN4:NN (4-byte AS number:2-byte
community value).
ASN:NNNN
Enter the 2-octet AS specific extended community number in the format
ASN:NNNN (2-byte AS number:4-byte community value).
IPADDR:NN
Enter the IP address specific extended community in the format
IPADDR:NN (4-byte IPv4 Unicast Address:2-byte community value)