The -c and -C options have been merged into a single one. Users must always specify both the ASN and the community value.
-c ASN,COMM Attach community ASN,COMM to the announcement. Can be used
multiple times to attach multiple communities. Only
PEERING-operated ASes are allowed for ASN. Both ASN and
COMM are limited to 16-bit numbers.
Communities in the range 47065,0--2000 have special meaning:
- Community 47065,0 indicates that an announcement should be
announced to remote peers through AL2S.
- Communities 47065,X (1 <= X <= 1000) indicate that the
announcement should be exported to peer X.
- Communities 47065,1000+X (1 <= X <= 1000) indicate that
the announcement should not be exported to the peer X.
Announcements through each peer only see their filtering
community. The default behavior is to announce to all
peers. See https://peering.usc.edu/peers for the list of
peers and their IDs.
Special communities in the range 65535,65281--65284 defined
in RFCs 1997 and 3765 are filtered and have no effect.
A maximum of 20 communities (not including the special
communities above) is allowed in any announcement. If the
number of communities exceeds 20, all communities will be
filtered.
The
-cand-Coptions have been merged into a single one. Users must always specify both the ASN and the community value.