Building the BGP Table

The BGP topology table, also called the BGP Routing Information Base (RIB), holds the network layer reachability information (NLRI) learned by BGP, as well as the associated PAs. An NLRI is simply an IP prefix and prefix length. This section focuses on the process of how BGP injects NLRI into a rout...

PortChannel Discovery and Configuration

You can explicitly configure interfaces to be in a PortChannel by using the channel-group number mode on interface subcommand. You would simply put the same command under each of the physical interfaces inside the PortChannel, using the same PortChannel number. You can also use dynamic protocols...

Debugging DSLw

If your routers will not establish a DLSw peer relationship, the most common problem is simple IP connectivity. Verify that you can PING the address in the remote-peer statement. Note also that at most, one end can use the promiscuous keyword to avoid configuring a remote-peer statement. This featur...

Using Static Routing

The first version sends all packets destined to the single host 10.35.15.5 out through the Ethernet0 interface. In this case, the router will need to figure out which device on this segment to forward the packet to, because it must put the MAC address of the next hop router in the Layer 2 frame head...

Monitoring and Verifying Frame Relay Switching Enhancements on a Cisco Router

This section discusses the IOS show c ommands for monitoring and verifying the Frame Relay Switching Enhancements information on a Cisco router. To facilitate the discussion on how Frame Relay switching enhancements work, traffic flow is generated on the network to help simulate actual users' traffi...

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