Specifications

SSR Command Line Interface Reference Manual 109
bgp set peer-group
no-v4-asloop
Prevents routes with looped AS paths from being advertised to version 4 external
peers. This can be useful to avoid advertising such routes to peer which would
incorrectly forward the routes on to version 3 neighbors.
as-count <num>
This option determines how many times the SSR will insert its own AS number when
we send the AS path to an external neighbor.
Specify a number between 1 and 25. The default is 1. Higher values typically are used
to bias upstream neighbors' route selection. (All else being equal, most routers will
prefer to use routes with shorter AS Paths. Using ascount, the AS Path the SSR sends
can be artificially lengthened.)
Note that ascount supersedes the no-v4-asloop option–regardless of whether no-v4-
asloop is set, we will still send multiple copies of our own AS if the as-count option is
set to something greater than one. Also, note that if the value of ascount is changed and
GateD is reconfigured, routes will not be sent to reflect the new setting. If this is
desired, it will be necessary to restart the peer session.
log-up-down
This option causes a message to be logged via the SYSLOG mechanism whenever a
BGP peer enters or leaves the ESTABLISHED state.
ttl <num>
By default, BGP sets the IP TTL for local peers to ONE and the TTL for non-local peers
to 255. This option is provided when attempting to communicate with improperly
functioning routers that ignore packets sent with a TTL of ONE. Specify a number
between 1 and 255.
optional-attributes-list <number-or-string>
Specifies the ID of the optional-attributes-list to be associated with this peer-group.
Restrictions
None.