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 Routing Protocols
The Cisco MWR 2941 supports the following routing protocols:
• OSPF—An Interior Gateway Protocol (IGP) designed expressly for IP networks that supports IP
subnetting and tagging of externally derived routing information. OSPF also allows packet
authentication and uses IP multicast when sending and receiving packets.
• IS-IS—An Open System Interconnection (OSI) protocol that specifies how routers communicate
with routers in different domains.
• BGP—An interdomain routing protocol designed to provide loop-free routing between separate
routing domains that contain independent routing policies (autonomous systems).
For instructions on how to configure OSPF, IS-IS, and BGP, see the Cisco IOS IP Routing Protocols
Configuration Guide, Release 12.2SR.
Note The Cisco MWR 2941 does not support the other routing protocols listed in this document.
Configuring BFD
Bidirectional Forwarding Detection (BFD) provides a low-overhead, short-duration method of detecting
failures in the forwarding path between two adjacent routers, including the interfaces, data links, and
forwarding planes. BFD is a detection protocol that you enable at the interface and routing protocol
levels. Cisco supports the BFD asynchronous mode, in which two routers exchange BFD control packets
to activate and maintain BFD neighbor sessions. To create a BFD session, you must configure BFD on
both systems (or BFD peers). Once you have enabled BFD on the interface and the router level for the
appropriate routing protocols, a BFD session is created, BFD timers are negotiated, and the BFD peers
begin to send BFD control packets to each other at the negotiated interval.
The following sections describe how to configure BFD for each routing protocol.
• Configuring BFD for OSPF
• Configuring BFD for BGP
• Configuring BFD for IS-IS
• Configuring BFD for Static Routes
For more information about BFD, refer to the Cisco IOS IP Routing Protocols Configuration Guide,
Release 12.2SR. For a sample BFD configurations, see Appendix A, “Sample Configurations.”
Configuring BFD for OSPF
This section describes how to configure BFD on the Cisco MWR 2941.
Configuring BFD for OSPF on One of More Interfaces
Follow these steps to configure BFD for OSPF on a single interface.
Step 1 Enter enable mode.
Router> enable
Step 2 Enter the password.