Table Of Contents; Before You Begin - Cisco MWR 1941-DC User Manual

Configuring Tasks
MLP LFI Support
MLP LFI is not supported by the Cisco MWR 1941-DC router. Therefore, MLP LFI must be disabled on
peer devices connecting to the Cisco MWR 1941-DC router T1 MLP connections.
ACFC and PFC Support on PPP Interfaces
If upgrading to Cisco IOS Release 12.2(8)MC2c or later for the ACFC and PFC support on PPP
interfaces, ensure that you upgrade the MGX-RPM-1FE-CP back card image first. After doing so,
immediately upgrade all MWR 1941-DC routers connected to the MGX-RPM-1FE-CP back card.
Configuring Tasks
See the following sections for configuration tasks for configuring the Cisco MWR 1941-DC router in an
IP-RAN.
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Before You Begin

Before you configure the MWR 1941-DC in an IP-RAN, please be aware of the following:
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Before You Begin, page 8
Slot and Port Numbering, page 9
Verifying the Version of Cisco IOS Software, page 9
Configuring the Host Name and Password, page 10
Configuring Loopback Interfaces, page 11
Configuring Fast Ethernet Interfaces, page 12
Configuring Multilink Interfaces, page 17
Configuring T1 and E1 Interfaces, page 23
Configuring QoS Attributes, page 25
Configuring Redundancy, page 28
Configuring the Link Noise Monitor, page 30
Saving the Configuration, page 33
Verifying the Configuration, page 33
Cisco IOS Release 12.2(8)MC2 or later "mwr1900-i-mz" image must be installed on the Cisco
MWR 1941-DC router.
You cannot disable Cisco Express Forwarding (CEF) on the MWR 1941-DC. Commands such as
no ip cef will display an error message "%Cannot disable CEF on this platform." Some commands,
such as no ip route-cache cef, will not return an error message. However, CEF will not be disabled
regardless of whether an error message is displayed.
If you are using the MWR 1941-DC in a redundant configuration and are attaching the
MWR 1941-DC to a device that uses spanning tree, configure portfast on the device to avoid
problems with HSRP at start up.
In case of a tie in priority, HSRP uses the IP address to determine the active router. Therefore, you
should ensure that the order of the IP addresses of the E1/T1 interfaces of the active router
corresponds to the order of the IP addresses of the E1/T1 interfaces of the standby router.
Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set