Three Catalyst(r) 4xxx, 5xxx, or 6xxx switches, two PCs with NICs, three crossover category 5 cables, two straightthrough category 5 cables, and a stopwatch or a watch with a second hand. | CertificationZone Page 1 of 5 Date of Issue 02-01-2001 LAN Switching Part I Lab Scenarios by Dan Farkas Lab Exercise 1 Goal Equipment Initial Configuration Task 1 Task 2 Solution Task 1 Task 2 Lab Exercise 2 Goal Initial Configuration Task 1 Task 2 Solution Task 1 Task 2 Lab Exercise 1 Goal Configure deterministic root placement and port blocking. Equipment Three Catalyst r 4xxx 5xxx or 6xxx switches two PCs with NICs three crossover category 5 cables two straight-through category 5 cables and a stopwatch or a watch with a second hand. Initial Configuration Task 1 Determine which switch is the root and label all switch ports as either Root Port RP Designated Port DP or Non-Designated Port NDP . Label the Root Switch A. Label the switch with two DPs B. Label the remaining switch C. Connect PC 1 to switch B. Connect PC 2 to switch C. Task 2 http studyguides. Issue 31 IssueDate 02-01-2001 CP 11 06 01 CertificationZone Page 2 of 5 Configure C to be the root switch. On the link between A and B which switch has the DP Configure the switch with the NDP to transition its NDP to the forwarding state. Verify it Solution Task 1 Use the show spantree command for VLAN 1 on each switch. You will see Switch enable show spantree 1 Vlan 1 Spanning tree enabled Spanning tree type ieee Designated Root 00-50-bd-18-a8-00 Designated Root Priority 8192 Designated Root Cost 0 Designated Root Port 1 0 Root Max Age 20 sec Hello Time 2 sec Bridge ID MAC ADDR 00-50-bd-18-a8-00 Bridge ID Priority 8192 Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec Forward Delay 15 sec Port VLAN Port-State Cost Priority Fast-Start 2 1 1 forwarding 2 2 1 forwarding 19 32 19 32 disabled disabled To determine the root switch look for a designated root cost of zero. Also look for the switch with the Designated Root field equal to the Bridge ID. To determine which ports are in a blocking state and which are in a forwarding state look at the Port-State field at the bottom of the
