Configuring Protocol-Independent Features; Configuring Distributed Cisco Express Forwarding - Cisco WS-C3750-48PS-S Software Configuration Manual

Configuring Protocol-Independent Features

Table 34-11 IP BGP Clear and Show Commands (continued)
Command
show ip bgp neighbors [address]
show ip bgp neighbors [address] [advertised-routes |
dampened-routes | flap-statistics | paths
regular-expression | received-routes | routes]
show ip bgp paths
show ip bgp peer-group [tag] [summary]
show ip bgp summary
You can also enable the logging of messages generated when a BGP neighbor resets, comes up, or goes
down by using the bgp log-neighbor changes router configuration command.
Configuring Protocol-Independent Features
This section describes how to configure IP routing protocol-independent features. These features are
available on switches running the SMI or the EMI; except that with the SMI, protocol-related features
are available only for RIP. For a complete description of the IP routing protocol-independent commands
in this chapter, refer to the "IP Routing Protocol-Independent Commands" chapter of the Cisco IOS IP
Command Reference, Volume 2 of 3: Routing Protocols, Release 12.2.
This section includes these procedures:
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Configuring Distributed Cisco Express Forwarding

Cisco Express Forwarding (CEF) is a Layer 3 IP switching technology used to optimize network
performance. CEF implements an advanced IP look-up and forwarding algorithm to deliver maximum
Layer 3 switching performance. CEF is less CPU-intensive than fast switching route caching, allowing
more CPU processing power to be dedicated to packet forwarding. In a Catalyst 3750 switch stack, the
hardware uses distributed CEF (dCEF) in the stack. In dynamic networks, fast switching cache entries
are frequently invalidated because of routing changes, which can cause traffic to be process switched
using the routing table, instead of fast switched using the route cache. CEF and dCEF use the Forwarding
Information Base (FIB) lookup table to perform destination-based switching of IP packets.
Catalyst 3750 Switch Software Configuration Guide
34-60
Configuring Distributed Cisco Express Forwarding, page 34-60
Configuring the Number of Equal-Cost Routing Paths, page 34-62
Configuring Static Unicast Routes, page 34-62
Specifying Default Routes and Networks, page 34-63
Using Route Maps to Redistribute Routing Information, page 34-64
Configuring Policy-Based Routing, page 34-68
Filtering Routing Information, page 34-71
Managing Authentication Keys, page 34-73
Purpose
Display detailed information on the BGP and TCP connections to
individual neighbors.
Display routes learned from a particular BGP neighbor.
Display all BGP paths in the database.
Display information about BGP peer groups.
Display the status of all BGP connections.
Chapter 34 Configuring IP Unicast Routing
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