Example For Configuring Is-Is To Interact With Bgp - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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7.24.6 Example for Configuring IS-IS to Interact with BGP

This section provides an example for configuring IS-IS and BGP to import routes of each other,
including the networking requirements, configuration roadmap, configuration procedure, and
configuration files.
Networking Requirements
Figure 7-9
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Figure 7-9 Networking diagram for configuring IS-IS to interact with BGP
Issue 02 (2014-09-30)
Configuration file of Router D
#
sysname RouterD
#
isis 1
is-level level-2
network-entity 10.0000.0000.0004.00
#
interface GigabitEthernet3/0/0
ip address 172.17.1.1 255.255.255.0
isis enable 1
#
interface Pos1/0/0
link-protocol ppp
ip address 192.168.0.2 255.255.255.0
isis enable 1
#
interface Pos2/0/0
link-protocol ppp
ip address 192.168.1.2 255.255.255.0
isis enable 1
#
return
shows a networking example.
Router A and Router B belong to the same AS, and the IS-IS neighbor relationship is
established between Router A and Router B. Router A is a non-BGP device in the AS.
An EBGP connection is set up between Router B and Router C.
IS-IS and BGP import routes of each other to implement interworking between devices in
the two ASs. A routing policy is configured to change the cost of a BGP route imported by
IS-IS so that a desired route will be selected.
Loopback0
1.1.1.1/32
POS1/0/0
10.1.1.1/24
POS1/0/0
RouterA 10.1.1.2/24
AS65008
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
POS1/0/0
10.2.1.1/24
RouterB
7 IS-IS Configuration
Loopback0
2.2.2.2/32
POS1/0/0
10.2.1.2/24
RouterC
AS65009
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