Cisco Systems 3750E manual Configuring BGP, Monitoring and Maintaining Eigrp, 38-43

Chapter 38 Configuring IP Unicast Routing

Configuring BGP

Figure 38-4 EIGRP Stub Router Configuration

	Routed to WAN
Switch A	Switch B	Switch C

145776

Host A Host B Host C

For more information about EIGRP stub routing, see “Configuring EIGRP Stub Routing” section of the Cisco IOS IP Configuration Guide, Volume 2 of 3: Routing Protocols, Release 12.2.

Monitoring and Maintaining EIGRP

You can delete neighbors from the neighbor table. You can also display various EIGRP routing statistics. Table 38-8lists the privileged EXEC commands for deleting neighbors and displaying statistics. For explanations of fields in the resulting display, see the Cisco IOS IP Command Reference, Volume 2 of 3: Routing Protocols, Release 12.2.

Table 38-8	IP EIGRP Clear and Show Commands
Command		Purpose
clear ip eigrp neighbors [if-addressinterface]		Delete neighbors from the neighbor table.
show ip eigrp interface [interface] [as number]		Display information about interfaces configured for EIGRP.
show ip eigrp neighbors [type-number]		Display EIGRP discovered neighbors.
show ip eigrp topology [autonomous-system-number]		Display the EIGRP topology table for a given process.
[[ip-address]mask]]
show ip eigrp traffic [autonomous-system-number]		Display the number of packets sent and received for all or a
		specified EIGRP process.

Configuring BGP

The Border Gateway Protocol (BGP) is an exterior gateway protocol used to set up an interdomain routing system that guarantees the loop-free exchange of routing information between autonomous systems. Autonomous systems are made up of routers that operate under the same administration and that run Interior Gateway Protocols (IGPs), such as RIP or OSPF, within their boundaries and that interconnect by using an Exterior Gateway Protocol (EGP). BGP Version 4 is the standard EGP for interdomain routing in the Internet. The protocol is defined in RFCs 1163, 1267, and 1771. You can find detailed information about BGP in Internet Routing Architectures, published by Cisco Press, and in the “Configuring BGP” chapter in the Cisco IP and IP Routing Configuration Guide.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		38-43