Frame relay: Multilink point to point frame relay

Reference: http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fs_mfr.html Multilink Frame Relay (FRF.16.1) 1. This technology aggregates multiple number of physical serial interfaces into one bundle. a. This provides link redundancy i.e. if a physical link of a bundle has failed, the frame relay link will still be available. b. This also provides bandwidth aggregation from multiple serial interfaces. (See http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fs_mfr.html#wp1054102) 2. The aggregated … Continue reading Frame relay: Multilink point to point frame relay →

Frame-relay: Inverse ARP

Frame relay is a packet switching technology that emulates like a switch. Switch uses ARP broadcast to find out the mac address of the host so that switch can forward the frame to the destined switch port. Frame relay however does not have broadcast ability, it uses encapsulation technique either Cisco or IETF encapsulation format. … Continue reading Frame-relay: Inverse ARP →

Connecting Enterprise hub to other enterprise spokes over NBMA (frame-relay)

The original design intention is not to advertise routes using ospf over NBMA network, it is not necessary for this case. However for Buona Vista HQ to be able to reach the two sites, I need entries in the routing table to let other routers know the road map to reach. A way is to … Continue reading Connecting Enterprise hub to other enterprise spokes over NBMA (frame-relay) →

EIGRP (in NBMA) Lab Preparation: Configure multipoint

Configure multipoint links. HQ is the hub, west and east are the spokes. Router(config)#hostname HQ HQ(config)# HQ(config)#int se0/0 HQ(config-if)#no shut HQ(config-if)#encapsulation frame-relay ietf HQ(config-if)#exit HQ(config)#int se0/0.1 multipoint HQ(config-subif)# HQ(config-subif)#ip address 172.30.10.1 255.255.255.248 HQ(config-subif)#frame-relay map ip 172.30.10.3 103 broadcast ietf HQ(config-subif)#frame-relay map ip 172.30.10.2 102 broadcast ietf Router(config)#hostname East East(config)# East(config-if)#encapsulation frame-relay ietf East(config-if)#no shut East(config-if)#exit … Continue reading EIGRP (in NBMA) Lab Preparation: Configure multipoint →

EIGRP (in NBMA) Lab Preparation: Configure Frame relay switch

Preparation for this lab is to configure the frame relay cloud. Router(config)#int se0/0 Router(config-if)#clock rate 512000 Router(config)#int se0/1 Router(config-if)#clock rate 1000000 Router(config)#int se0/2 Router(config-if)#clock rate 512000 Router(config)#int se0/1 Router(config-if)#encapsulation frame-relay ietf Router(config-if)#no frame-relay inverse-arp Router(config-if)#frame-relay route 102 interface serial 0/0 201 Router(config-if)#frame-relay route 103 interface serial 0/2 301 Router(config-if)#frame-relay intf-type dce Router(config-if)#logging event dlci-status-change Router(config-if)#logging … Continue reading EIGRP (in NBMA) Lab Preparation: Configure Frame relay switch →