Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
rep segment
rep segment
Use the rep segment interface configuration command to enable Resilient Ethernet Protocol (REP) on
the interface and to assign a segment ID to it. Use the no form of this command to disable REP on the
interface.
rep segment segment-id [edge [no-neighbor] [primary]] [preferred]
no rep segment
Syntax Description
Defaults REP is disabled on the interface.
When REP is enabled on an interface, the default is for the port to be a regular segment port.
Command Modes Interface configuration
Command History
Usage Guidelines REP ports must be Layer 2 trunk ports. A non-ES REP port can be either an IEEE 802.1Q trunk port or
an ISL trunk port.
REP ports should not be configured as one of these port types:
• SPAN destination port
• Private VLAN port
segment-id Assign a segment ID to the interface. The range is from 1 to 1024.
edge (Optional) Identify the interface as one of the two REP edge ports. Entering the edge
keyword without the primary keyword configures the port as the secondary edge
port.
no-neighbor (Optional) Configure a segment edge with no external REP neighbor.
primary (Optional) On an edge port, specify that the port is the primary edge port. A segment
has only one primary edge port. If you configure two ports in a segment as the
primary edge port, for example ports on different switches, the REP selects one of
them to serve as the segment primary edge port.
preferred (Optional) Specify that the port is the preferred alternate port or the preferred port
for VLAN load balancing.
Note Configuring a port as preferred does not guarantee that it becomes the
alternate port; it merely gives it a slight edge among equal contenders. The
alternate port is usually a previously failed port.
Release Modification
12.2(44)SG This command was introduced.
15(02)SG The no-neighbor keyword was added.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E