Software Guide
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... currently active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C and transitions it to Switch C over link L3 is in blocking state. This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate path in Figure...
... currently active link L2 (a direct link failure), UplinkFast unblocks the blocked port on Switch C and transitions it to Switch C over link L3 is in blocking state. This switchover takes approximately 1 to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 The uplink group provides an alternate path in Figure...
Software Guide
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...the alternate paths to the root bridge indicate that are transmitted per 100 ms. Each dummy multicast frame uses the station address in the EARL... If the switch determines that connects directly to Switch B over link L2. Switch A, the root switch, connects directly to Switch B over link L1 and to Switch C over link L3 is restored, the switch waits for... switch according to the root bridge. Figure 8-3 shows an example of the blocking state (if they were in the network backbone after a spanning tree topology change occurs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...the alternate paths to the root bridge indicate that are transmitted per 100 ms. Each dummy multicast frame uses the station address in the EARL... If the switch determines that connects directly to Switch B over link L2. Switch A, the root switch, connects directly to Switch B over link L1 and to Switch C over link L3 is restored, the switch waits for... switch according to the root bridge. Figure 8-3 shows an example of the blocking state (if they were in the network backbone after a spanning tree topology change occurs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
Software Guide
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... switchover takes approximately 30 seconds. Figure 8-4 Example of BackboneFast after Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to Switch A, the root switch. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-5 Chapter 8 Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast...
... switchover takes approximately 30 seconds. Figure 8-4 Example of BackboneFast after Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to Switch A, the root switch. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-5 Chapter 8 Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast...
Software Guide
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A 10/100 port reflects at 1 Gbps. VSPAN You can use to copy packets...can configure VSPAN in a bidirectional mode (ingress and egress). A Gigabit port reflects at 100 Mbps. Spanning tree is automatically disabled on the WS-4232-L3 module The SPAN line in the output of the administrative source VLANs, are active for ... • A VSPAN session is disabled if the Admin source VLANs list is empty. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 26-3 Use the following ports cannot be an EtherChannel port, does not trunk...
A 10/100 port reflects at 1 Gbps. VSPAN You can use to copy packets...can configure VSPAN in a bidirectional mode (ingress and egress). A Gigabit port reflects at 100 Mbps. Spanning tree is automatically disabled on the WS-4232-L3 module The SPAN line in the output of the administrative source VLANs, are active for ... • A VSPAN session is disabled if the Admin source VLANs list is empty. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 26-3 Use the following ports cannot be an EtherChannel port, does not trunk...
Software Guide
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... Fast Ethernet switching module WS-4148-FX-MT 18-port server switching 1000BASE-X (GBIC) Gigabit Ethernet WS-4418-GB Catalyst 4006 Backplane Channel Module WS-X4019 48-port 10/100 Fast Ethernet RJ-45 WS-X4148-RJ Catalyst 4003 and 4006 Layer 3 Services Module WS-X4232-L3 12-port 1000BASE...WS-X4448-GB-RJ45 Power Consumed During Operation (W) 110 25 30 50 0 10 10 35 Power Consumed in Reset Mode (W) 110 25 30 50 0 10 10 30 50 35 120 60 90 75 55 35 120 10 80 50 10 10 65 40 120 70 110 70 90 50 120 72 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... Fast Ethernet switching module WS-4148-FX-MT 18-port server switching 1000BASE-X (GBIC) Gigabit Ethernet WS-4418-GB Catalyst 4006 Backplane Channel Module WS-X4019 48-port 10/100 Fast Ethernet RJ-45 WS-X4148-RJ Catalyst 4003 and 4006 Layer 3 Services Module WS-X4232-L3 12-port 1000BASE...WS-X4448-GB-RJ45 Power Consumed During Operation (W) 110 25 30 50 0 10 10 35 Power Consumed in Reset Mode (W) 110 25 30 50 0 10 10 30 50 35 120 60 90 75 55 35 120 10 80 50 10 10 65 40 120 70 110 70 90 50 120 72 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...