Specifications
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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
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Chapter 4 Configuring the Cisco MWR 2941 Router Using the CLI
Configuration Sequence
Configuring Pseudowire-based Clocking with Adaptive Clock Recovery
The Cisco MWR 2941 supports the following adaptive clock recovery modes:
• In-band master mode—The Cisco MWR 2941 provides clocking to slave devices using the headers
in a packet stream. To configure this clocking mode, see Configuring In-Band Master Mode.
• In-band slave mode—The Cisco MWR 2941 receives clocking from a master clock using the
headers from a packet stream. To configure this clocking mode, see Configuring In-Band Slave
Mode.
• Out-of-band slave mode—The Cisco MWR 2941 receives clocking from a master clock using
dedicated packets for timing. To configure this clocking mode, see Configuring Out-of-Band Slave
Mode.
Note The Cisco MWR 2941 currently does not support out-of-band master mode.
Configuring In-Band Master Mode
Step 1 To configure in-band ACR master mode, you must configure Structure-agnostic TDM over Packet
(SAToP) or Circuit Emulation Service (CES).
• The following example shows how to configure SAToP.
Router(config)# controller e1 0/0
Router(config-controller)# clock source internal
Router(config-controller)# cem-group 0 unframed
• The following example shows how to configure CES.
Router(config)# controller e1 0/0
Router(config-controller)# clock source internal
Router(config-controller)# cem-group 3 timeslots 1-31
Step 2 Configure the loopback interface.
Router(config)# interface Loopback
Router(config-if)# ip address 10.88.88.99 255.255.255.255
Step 3 Configure the VLAN interface.
Router(config)# interface Vlan1
Router(config-if)# ip address 192.168.52.2 255.255.255.0
Router(config-if)# no ptp enable
Router(config-if)# mpls ip
Step 4 Configure MPLS.
Router(config)# mpls ldp router-id Loopback0 force
Step 5 Configure the CEM interface.
Router(config)# interface cem 0/1
Router(config-if)# cem 0
Router(config-if-cem)# xconnect 10.10.10.2 7600 encap mpls
Step 6 Set one or more external clock sources using the synce, bits, E1, or T1 interface parameters:
Router(config)# network-clock-select 1 BITS