Cisco 2921 User Manual

81
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Ethernet Virtual Connection Bridge Domain
Connectivity Fault Management (CFM) over EVC BD
Configuration Examples for Configuring Ethernet CFM for the Cisco ISR G2 Routers
The following two examples show configurations for a network. Configurations are shown not only for
the Carrier Ethernet Cisco ISR G2 Routers, but also for the devices used at the access and core of the
service provider’s network.
• Example: Provisioning a Network, page 81
• Example: Provisioning Service, page 84
Example: Provisioning a Network
This configuration example shows only CFM-related commands. All commands that are required to set
up the data path and configure the VLANs on the device are not shown. However, it should be noted that
CFM traffic will not flow into or out of the device if the VLANs are not properly configured.
CE-A Configuration
Step 3
ethernet cfm domain domain-name level
level-id
Example:
Router(config)# ethernet cfm domain
Customer level 7
Defines a CFM maintenance domain at a specified level
and enters Ethernet CFM configuration mode.
Step 4
mep mpid mpid
Example:
Router(config-ecfm)# mep mpid 702
Statically defines the MEPs within a maintenance
association.
Step 5
exit
Example:
Router(config-ecfm)# exit
Returns the device to global configuration mode.
Step 6
ethernet cfm mep crosscheck
start-delay delay
Example:
Router(config)# ethernet cfm mep
crosscheck start-delay 60
Configures the maximum amount of time that the device
waits for remote MEPs to come up before the cross-check
operation is started.
Step 7
exit
Example:
Router(config)# exit
Returns the device to privileged EXEC mode.
Step 8
ethernet cfm mep crosscheck {enable |
disable} domain domain-name] {port |
vlan {vlan-id | vlan-id - vlan-id | ,
vlan-id - vlan-id}}
Example:
Router# ethernet cfm mep crosscheck
enable domain cust4 vlan 100
Enables cross-checking between the list of configured
remote MEPs of a domain and MEPs learned through
CCMs.
Command Purpose

Cisco 2921 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
Product color	Black
Rack capacity	2U
USB version	2.0
RS-232 ports	1
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
Firewall security	Cisco IOS
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 85 %
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	469.9 mm
Width	438.2 mm
Height	88.9 mm
Weight	13200 g