Comprehensive Analysis of Cisco switch FAQs

Cisco has become a leader in the communication industry, and its product performance is still very good. Here we mainly explain the common problems and solutions of Cisco switches. Here we will share with you some of them, I hope it will be useful to you.

Cisco switch FAQ 1: What switches Does Cisco currently support layer-3 switching?

Answer: Catalyst 2948G-L3, Catalyst 4908G-L3, Catalyst 4003, Catalyst 4006, Catalyst 5000, Catalyst 6000, and Catalyst 8500 series.

Cisco switch FAQ 2: Can the Catalyst 2948G stack with the GigaStack GBIC of the Catalyst 3500XL?

A: No. The structure of the Catalyst 2948G is different from that of the Catalyst 3500XL, And the Catalyst 2948G does not support the GigaStack GBIC module, so it cannot be stacked.

Cisco switch FAQ 3: What is the forwarding rate of Layer 3 packets of Catalyst 2948G-L3, 4000, and 6000?

Answer: Catalyst 2948G-L3: 11 Mpps; Catalyst 4000: 6 Mpps; Catalyst 6000/6500: 15Mpps to 150 Mpps.

Cisco switch FAQ 4: What is the maximum connection diameter of a Catalyst switch?

A: Yes. Generally, the maximum connection diameter of a vswitch is 7. If this number is exceeded, an unstable state is generated during tree computing. Therefore, when the connection diameter is close to or equal to 7, use the star row network topology as much as possible.

Cisco switch FAQ 5: Does catalyst 4000 support ISL?

A: catalyst 4000 does not support ISL and 802.1q.

Cisco switch FAQ 6: How do I determine your vswitch engine model?

Answer: by using the command show version you will see the line card model: WS-X5xxx = SupI generation) WS-X55xx = SupII generation) WS-X553x = SupIII generation) from the physical look: generation 1 engine-only the reset key and no PCMCIA slot. Second generation engine-Reset key, active status light, no PCMCIA. Three generations of engines-with a PCMCIA slot and a port connected to a superior.

Cisco switch FAQ 7: What are the features of the switches, such as MSM, NFFC, MSFC, and PFC?

A: The MSMMultilayer switch module is a layer-3 routing card used on 6000, and the layer-3 forwarding capability of 6 mpps is 5000 series super engine 3. x adds functions such as ip mls, IGMP, and layer-3 filtering. The layer-3 routing sub-card of the super engine on MSFC 6000 provides 15 Mpps L3 forwarding IP addresses and IPX packet forwarding capabilities. It works with the PFC card to provide IP multicast capabilities. The PFC card is used to provide layer-3 functions for vswitches, such as VLAN access list control and QOS access list. MSFC is not required to install the PFC card, but you must install the PFC when installing MSFC.

Cisco switch FAQ 8: Is GBIC required for the upstream module WS-U5534-GESX/WS-U5536-GELX of the Catalyst 5000 upstream engine III?

Answer: No. These two modules are not GBIC Gigabit modules. You only need to connect the optical fiber jumper.

Cisco switch FAQ 9: How does the upstream connection module of Catalyst 5000 appear in Configuration Tool?

A: You need to select the corresponding engine and complete Update or Check before the corresponding connection module appears.

Cisco switch FAQ 10: How is the WS-X4232-RJ-XX module and WS-U4504-FX-MT module on the Catalyst 4003/4006 used?

A: The WS-U4504-FX-MT is the child card on the WS-X4232-RJ-XX.