Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 1021
Dell-2 Switch
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Verify if peer routing has populated the CAM table with the correct information using the show cam mac command. DellEMC#1#sh cam mac stack-unit 0 port-set 0 ! VlanId Mac Address Region Interface 20 90:b1:1c:f4:29:f3 STATIC Po 10 20 00:0d:bc:6e:93:00 DYNAMIC Po 1 20 ff:ff:ff:ff:ff:ff STATIC 00001 900 90:b1:1c:f4:29:f3 STATIC Po 10 900 ff:ff:ff:ff:ff:ff STATIC 00001 800 90:b1:1c:f4:29:f3 STATIC Po 10 800 ff:ff:ff:ff:ff:ff STATIC 00001 0 ff:ff:ff:ff:ff:ff STATIC 00001 0 90:b1:1c:f4:2c:bd LOCAL_DA 00001 0 90:b1:1c:f4:29:f3 LOCAL_DA 00001A The above output shows that the 90:b1:1c:f4:2c:bd MAC address belongs to Dell-1. The 90:b1:1c:f4:29:f3 MAC address belongs to Dell-2. Also note that these MAC addresses are marked with LOCAL_DA. This means, these are the local destination MAC addresses used by hosts when routing is required. Packets sent to this MAC address are directly forwarded to their destinations without being sent to the peer switch. Dell-2 Switch Configuration In the following output, RSTP is enabled with a bridge priority of 32768, which is the second lowest in this topology. This ensures that Dell-2 becomes the root bridge if Dell-1 fails. DellEMC#2#sh run | find protocol protocol spanning-tree pvst no disable vlan 1,20,800,900 bridge-priority 32768 The following output shows the existing VLANs. DellEMC#1#show vlan | find NUM NUM Status Description * 1 Active 20 Active OSPF PEERING VLAN 800 Active 900 Active Configuration on Interfaces Client-VLAN U Te 0/4 Client-VLAN-2 Q Ports U Po10 (Te 0/0-1) U Po1 (Te 0/6) V Po10 (Te 0/0-1) V Po10 (Te 0/0-1) V Po10 (Te 0/0-1) DellEMC#2#sh run int ma0/0 interface ManagementEthernet 0/0 description Used_for_VLT_Keepalive ip address 10.10.10.2/24 no shutdown In Dell-2, te 0/0 and te 0/1 are used for VLTi. In Dell-2, tw 1/1 and tw 1/2 are used for VLTi. DellEMC#2#sh run int te0/0 interface TenGigabitEthernet 0/0 description VLTi LINK no ip address no shutdown ! DellEMC#1#sh run int te0/1 interface TenGigabitEthernet 0/1 description VLTi LINK Virtual Link Trunking (VLT) 1021
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