3Com 3C13636 Configuration Manual page 555

3Com Router 3000 Ethernet Family
Configuration Guide
6.2.21 Resetting BGP Connection ................................................................................. 6-25
6.3 Displaying and Debugging BGP ...................................................................................... 6-26
6.4 BGP Configuration Example............................................................................................ 6-29
6.4.1 Configuring BGP AS Confederation Attribute ....................................................... 6-29
6.4.2 Configuring BGP Route Reflector ......................................................................... 6-31
6.4.3 Configuring BGP Load Balancing ......................................................................... 6-33
6.5 Troubleshooting BGP ...................................................................................................... 6-34
6.6 MBGP Overview .............................................................................................................. 6-35
6.6.1 Introduction to MBGP............................................................................................ 6-35
6.6.2 MBGP Extension Attributes................................................................................... 6-35
6.6.3 MBGP Applied on the Router................................................................................ 6-36
6.7 MBGP Configuration........................................................................................................ 6-36
6.7.1 Configuring the Address Family ............................................................................ 6-36
6.7.2 Enabling Peer/Peer Group .................................................................................... 6-37
6.8 Displaying and Debugging MBGP ................................................................................... 6-37
6.9 MBGP Configuration Example......................................................................................... 6-38
6.9.1 Configuring MBGP Route Reflector ...................................................................... 6-38
Chapter 7 IP Routing Policy Configuration ................................................................................ 7-1
7.1 IP Routing Policy Overview ............................................................................................... 7-1
7.2 Configuring IP Routing Policy ............................................................................................ 7-3
7.2.1 Configuring Route Filtering ..................................................................................... 7-3
7.2.2 Implementing Routing Policy by route-policy .......................................................... 7-6
7.3 Displaying and Debugging the Routing Policy................................................................. 7-11
7.4 Routing Policy Configuration Example ............................................................................ 7-11
7.4.1 Configuring to Redistribute Routing Information from Other Protocols................. 7-11
7.4.2 Configuring RIP to Filter the Advertised Routing Information ............................... 7-12
7.4.3 Configuring OSPF to Filter the Received Routing Information ............................. 7-13
7.4.4 Configuring the BGP cost Attribute to Select Path................................................ 7-14
7.4.5 Configuring Routing Policy Based on next-hop/as-path/origin/ local-preference . 7-18
7.4.6 Configuring Routing policy Based on the BGP Community Attribute ................... 7-21
7.5 Troubleshooting Routing Policy ....................................................................................... 7-23
Chapter 8 Route Capacity Configuration .................................................................................... 8-1
8.1 Route Capacity Configuration Overview............................................................................ 8-1
8.1.1 Introduction to Route Capacity Configuration ......................................................... 8-1
8.1.2 Route Capacity Limitation ....................................................................................... 8-1
8.2 Route Capacity Configuration............................................................................................ 8-1
8.2.1 Configuring the Lower Limit and the Safety Value of the Router Memory.............. 8-2
8.2.2 Disabling Automatic Recovery of the Disconnected Routing Protocol ................... 8-2
8.2.3 Enabling Automatic Recovery of the Disconnected Routing Protocol .................... 8-3
8.3 Displaying and Debugging Route Capacity ....................................................................... 8-3
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