setup the lab as below, bear in mind that multicast is depend on the routing table, so make sure all network are reachable to each other. enable the multicast routing on both router, R1 and R2 R1(config)#ip multicast-routing configure PIM on the interfaces R1 : fa0/0 and ser0/0 and R2 fa0/0 and ser0/0 R1 interface FastEthernet0/0 ip address 192.168.1.99 255.255.255.0 ip pim sparse-dense-mode duplex auto speed auto end interface Serial0/0 ip address 10.1.1.1 255.255.255.252 ip pim sparse-dense-mode clock rate 56000 end R2 interface FastEthernet0/0 ip address 172.16.1.99 255.255.255.0 ip pim sparse-dense-mode duplex auto speed auto end interface Serial0/0 ip address 10.1.1.2 255.255.255.252 ip pim sparse-dense-mode end this is it !! now our multicast traffic should run smoothly on our network. But how to test, there's a few method out there, but let's try this way first. we...
we'll start with setup EtherChannel between S1 and S2 use the range for of the interface for easy setup S1(config)#interface rang fa 1/14 - 15 S1(config-if-range)#channel-group 1 mode on Creating a port-channel interface Port-channel1 *Mar 1 00:23:53.623: %EC-5-BUNDLE: Interface Fa1/14 joined port-channel Po1 *Mar 1 00:23:53.683: %EC-5-BUNDLE: Interface Fa1/15 joined port-channel Po1 *Mar 1 00:23:56.579: %LINEPROTO-5-UPDOW we getting this feedback on the screen, indicating that this EtherChannel is up. we have created a virtual interface of EtherChannel called Port-Channel1, or Po1 let's verify this by show etherchannel summary, here you can more detail such as interfaces that intercipated in this group S2#show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended...
as usual, i'm using cisco 3740 with additional slot NM-16ESW. for the 1st stage, we only use one link for every connection between every switch (i'll refer the router as the switch for the rest of the tutorial) configure on D1, port fast 1/1 and 1/7 no shutdown switchport trunk encap dot1q switchport mode trunk on D2, no span tree yet on D2 because all port still down D2(config)#do sh span br No spanning tree instances exist. configure the same we did on D2 for port 1/1 and 1/3 immediately after port change to trunk mode, you'll notice that it is in the listenin(LIS) mode this is when they running the algorithm to find a loop later the status will change to (learn)LRN then (forwarding)FWD D2(config-if)#do sh sp br ... Name Port ID Prio Cost Sts Cost Bridge ID Port ID ----------...
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