Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 75 Configuring Ethernet OAM and CFM
Configuring Ethernet CFM
Feature Support and Behavior
CFM S-VLAN component support:
• Up MEPs at any level (0 to 7).
Up MEPs use the port access VLAN ID (the outer tag or S-VLAN).
CFM frames sent and received by Up MEPs have a single VLAN tag, and the VLAN identifier is the
port access VLAN ID (S-VLAN). Because the 802.1q tunnel interface marks the endpoint of the
S-VLAN, the associated S-VLAN component should mark the endpoint of the CFM domain running
over the S-VLAN space.
CFM C-VLAN component support:
• Up MEP functions at any level (0 to 7).
Up MEPs use two tags: an outer tag with a VLAN ID that is the port access VLAN (S-VLAN) and
an inner tag with a selected C-VLAN that is allowed through the 802.1q tunnel port. CFM frames
sent and received by these Up MEPs are always double-tagged.
• MIP functions at any level (0 to 7).
MIPs process CFM frames that are single-tagged when coming from the wire-side and
double-tagged when coming from the relay-function side.
• Transparent point functions.
Supported maintenance points on 802.1q tunnels:
• Up MEP on the C-VLAN component for selective or all-to-one bundling
• Up MEP on the S-VLAN
• Port MEP
• MIP support on C-VLAN component for selective or all-to-one bundling
Note The switch supports only manual configuration of MIPs. It does not support MIP autocreation on
C-VLANs.
Platform Restrictions and Limitations
• Maximum supported MEPs per switch at each continuity check message (CCM) interval:
– 1600 MEP local and 1600 MEP remote (on C-VLAN and S-VLAN) with 10-second intervals
– 250 MEP local and 250 MEP remote (on C-VLAN and S-VLAN) with 1-second intervals
• Maximum supported MIPs at each CCM interval:
– 300 MIPs at 10 seconds
– 125 MIPs at 1 second
• There could be issues detecting cross-connect errors on the Catalyst 4500 series switch.
• These features are not supported:
– CFM C-component on the native VLAN
– Down MEP on S or C-VLAN (provider network port)
– MIP on S-VLAN (provider network port)
– CFM C-VLAN alarm indication signal (AIS)

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