Cabletron Systems SSR-GLX19-02, Руководство пользователя

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CoreWatch User’s Manual 287
Chapter 15: Configuring BGP on the SSR
g. Click the Definitions tab.
h. If you wish to add another peer host to the BGP, check the Add More Hosts option,
click Next , and repeat step a through step f until you have specified all of the
hosts you wish to add to the BGP. Otherwise, simply click Next to continue with
the configuration process.
Route Out-Delay Used to dampen route fluctuations. The Out-Delay option is
the amount of time (in seconds) a route must remain included
in the routing table before it is exported to BGP. The default
value for this option is 0, or disabled.
IP TTL By default, BGP sets the IP TTL for local peers to 1 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 1.
AS Count This option determines how many times GateD will insert our
own autonomous system number when we send the
autonomous system path to an external neighbor.
The default value for this option is 1. Higher values are
typically used to bias upstream neighbors' route selection.
Note:
This option supersedes the Advertise Routes with
Looped AS Path to ver 4 Peers option. Regardless of
whether or not the Advertise Routes with Looped AS Path
to ver 4 Peers option is turned on, the SSR will still send
multiple copies of its own autonomous system if the
this option is set to something greater than 1.
In addition, if the value of the AS Count option changes
and GateD is reconfigured, routes will not be sent to
reflect the new setting. If this is the desired behavior,
you will need to restart the peer session.
Cabletron recommends that you use this option only
for external groups.
Optional Attributes Specifies the identifier of the optional-attributes-list to be
associated with this peer group.
You can configure optional attributes using the Optional Path
Attribute List dialog box as described in
“Configuring and
Modifying Optional Attribute Building Blocks” on page 334 .
Table 36. Add Host to BGP Group advanced options (Continued)
Option Description