Specifications
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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
Chapter 4 Configuring the Cisco MWR 2941 Router Using the CLI
Configuration Sequence
Router(config-if)# ip address 10.88.88.99 255.255.255.255
Step 3 Enter the following commands to configure the VLAN interface.
Router(config)# interface Vlan1
Router(config-if)# ip address 192.168.52.10.2 255.255.255.0
Router(config-if)# no ptp enable
Router(config-if)# mpls ip
Step 4 Enter the following command to configure MPLS.
Step 5 Router(config)# mpls ldp router-id Loopback0 force
Step 6 Enter the following commands to configure the CEM interface.
Router(config)# interface virtual-cem 0/24
Router(config-if)# payload-size 486
Router(config-if)# cem 0
Router(config-if-cem)# xconnect 10.10.10.2 7600 encap mpls
Note The Cisco MWR 2941 only supports a payload size of 486 (625 packets per second) or 243 (1250 packets
per second). This value affects the payload size only and does not alter the packet size, which is constant
regardless of payload value.
Step 7 Enter the following commands to configure the network clock:
Router(config)# network-clock-select 1 PACKET-TIMING
Router(config)# network-clock-select hold-timeout 900
Configuring Synchronous Ethernet
The following sections describe how to configure synchronous Ethernet timing on the Cisco MWR 2941.
Configuring an External Clock Source
To configure an external clock source using synchronous Ethernet, use the network-clock select
command.
Router(config)# network-clock-select 2 SYNC 0
Configuring Network Clock Quality Selection Using REP
Network clock quality selection with REP uses the Ethernet Synchronization Message Channel (ESMC)
to indicate the quality of a clock source on a REP network segment. Network clock quality selection with
REP also requires that you configure the following features:
• Holdoff timer—Defines the amount of time router waits before taking action when a synchronous
Ethernet clock source fails. After the holdoff timer expires, the router announces the failure and
takes one of the following actions depending on the clocking configuration:
–
Considers other clock sources.
–
Switches to holdover mode. The router generates a timing signal based on the stored timing
reference.
The holdoff timer is a global timer value; it applies to both synchronous Ethernet clock sources
when configured.