Cisco me 3400 Guia Do Programa

35-57

Cisco ME 3400 Ethernet Access Switch Software Configuration Guide

OL-9639-07

Chapter 35 Configuring IP Unicast Routing

Configuring BGP

Step 9

neighbor {ip-address | peer-group-name}
update-source interface

(Optional) Allow internal BGP sessions to use any operational
interface for TCP connections.

Step 10

neighbor {ip-address | peer-group-name}
ebgp-multihop

(Optional) Allow BGP sessions, even when the neighbor is not
on a directly connected segment. The multihop session is not
established if the only route to the multihop peer’s address is the
default route (0.0.0.0).

Step 11

neighbor {ip-address | peer-group-name}
local-as number

(Optional) Specify an AS number to use as the local AS. The
range is 1 to 65535.

Step 12

neighbor {ip-address | peer-group-name}
advertisement-interval seconds

(Optional) Set the minimum interval between sending BGP
routing updates.

Step 13

neighbor {ip-address | peer-group-name}
maximum-prefix maximum [threshold]

(Optional) Control how many prefixes can be received from a
neighbor. The range is 1 to 4294967295. The threshold
(optional) is the percentage of maximum at which a warning
message is generated. The default is 75 percent.

Step 14

neighbor {ip-address | peer-group-name}
next-hop-self

(Optional) Disable next-hop processing on the BGP updates to a
neighbor.

Step 15

neighbor {ip-address | peer-group-name}
password string

(Optional) Set MD5 authentication on a TCP connection to a
BGP peer. The same password must be configured on both BGP
peers, or the connection between them is not made.

Step 16

neighbor {ip-address | peer-group-name}
route-map map-name {in | out}

(Optional) Apply a route map to incoming or outgoing routes.

Step 17

neighbor {ip-address | peer-group-name}
send-community

(Optional) Specify that the COMMUNITIES attribute be sent to
the neighbor at this IP address.

Step 18

neighbor {ip-address | peer-group-name} timers
keepalive holdtime

(Optional) Set timers for the neighbor or peer group.

•

The keepalive interval is the time within which keepalive
messages are sent to peers. The range is 1 to 4294967295
seconds; the default is 60.

•

The holdtime is the interval after which a peer is declared
inactive after not receiving a keepalive message from it. The
range is 1 to 4294967295 seconds; the default is 180.

Step 19

neighbor {ip-address | peer-group-name} weight
weight

(Optional) Specify a weight for all routes from a neighbor.

Step 20

neighbor {ip-address | peer-group-name}
distribute-list {access-list-number | name} {in |
out}

(Optional) Filter BGP routing updates to or from neighbors, as
specified in an access list.

Step 21

neighbor {ip-address | peer-group-name}
filter-list access-list-number {in | out | weight
weight}

(Optional) Establish a BGP filter.

Step 22

neighbor {ip-address | peer-group-name}
version value

(Optional) Specify the BGP version to use when communicating
with a neighbor.

Step 23

neighbor {ip-address | peer-group-name}
soft-reconfiguration inbound

(Optional) Configure the software to start storing received
updates.

Step 24

end

Return to privileged EXEC mode.

Command

Purpose