Triggered Update for RIP

To configure triggered update for RIP, you need to enable following command on the interface configuration mode:
ip rip triggered

This command only works on point-to-point sub-interface if it is a Frame-Relay interface.

Bridging over Frame Relay

Three routers connecting to the frame relay cloud with hub spoke topology, with R1 being the hub and R2 and R3 being the spokes.

R2 --(201)--(102)--R1--(103)--(301)--R3

IP address on R2 is 10.10.10.2/31, and IP address on R3 is 10.10.10.3/31.

Because the subnet mask is 31 bit, there is no space for R1. We have to run bridge over frame relay.

We will enable IRB on R2 and R3, and either IRB or CRB on R1. We will create two multipoint sub-interfaces on R1, to map the dlci with the bridge-group and bridge the DLCIs together.

Configurations below:

R1

bridge crb
!
interface Serial1/0
no ip address
encapsulation frame-relay
serial restart-delay 0
no frame-relay inverse-arp
!
interface Serial1/0.1 multipoint
frame-relay map bridge 102 broadcast
bridge-group 1
!
interface Serial1/0.2 multipoint
frame-relay map bridge 103 broadcast
bridge-group 1
!
bridge 1 protocol ieee


R2

bridge irb
!
interface Serial1/0
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay map bridge 201 broadcast
no frame-relay inverse-arp
bridge-group 1
!
interface BVI1
ip address 10.10.10.2 255.255.255.254
!
bridge 1 protocol ieee
bridge 1 route ip
!


R3

bridge irb
!
interface Serial1/0
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay map bridge 301 broadcast
no frame-relay inverse-arp
bridge-group 1
!
interface BVI1
ip address 10.10.10.3 255.255.255.254
!
bridge 1 protocol ieee
bridge 1 route ip
!


Pinging R2 from R3 to test:
R3#ping 10.10.10.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.10.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 168/228/276 ms
R3#

Catalyst 3550 and WCCP

To enable WCCP on Cisco Catalyst 3550 switch, first, you need to enable the SDM for routing with extended-match:
sdm prefer routing extended-match

Secondly, enable wccp globly:
ip wccp web-cache

Thirdly, WCCP on 3550 can only run inbound redirect, so under the user interface, run
ip wccp web-cache redirect in

Frame-Relay Traffic Shaping and QoS

When configuring frame relay traffic shaping and applying service policy to the map-class, keep the followings in mind:

• Use 'max-reserved-bandwidth' interface command to change the bandwidth available.
• Configure the 'frame-relay mincir' under the map-class to guarantee the bandwidth.