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Catalyst 2900 series XL switches can be linked using the provided Fast EtherChannel cables and the Fast EtherChannel configuration feature. The cables provide the physical link, and the Fast EtherChannel feature provides the logical link. Figure 1 shows four Catalyst 2924 XL switches connected to a Catalyst 2916M XL or Catalyst 2924M XL switch.
The Cisco 2900 XL Expansion Kit provides the following features:
Management
You can use the Cisco Visual Switch Manager software to manage your Catalyst 2900 series XL switches from any point on your network. This manager software is a secure, easy-to-use, browser-based tool for configuring and managing your switches.
Flexibility
Using Cisco's Fast EtherChannel technology, you can scale your network from 3 units (48/56-port stack) to 5 units (96/104-port stack).
Reliability
The Fast EtherChannel feature provides redundant, cumulative, Fast EtherChannel links between switches. If a single port fails, the other ports in the Fast EtherChannel link continue to operate.
Performance
The 2900 XL StackPack provides up to 1.6 Gbps of aggregate bandwidth between switches.
Scalability
As your network grows, you can add modules to the Catalyst 2916M XL or Catalyst 2924M XL switch or add another Catalyst 2924 XL switch. Future Gigabit Ethernet modules will provide high-bandwidth uplinks from your switches to the core of your network.
This section provides the basic procedures for cabling the connections between a Catalyst 2916M XL or Catalyst 2924M XL switch and the Catalyst 2924 XL switches.
The following procedure provides instructions for cabling one Catalyst 2916M XL or Catalyst 2924M XL switch and two Catalyst 2924 XL switches. Figure 2 illustrates the connections.
Step 1 Connect the Fast EtherChannel cable provided to port 1 and port 2 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 2 Connect the other end of the cable to port 1 and port 2 of the first Catalyst 2924 XL switch.
Step 3 Connect a second Fast EtherChannel cable to port 3 and port 4 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 4 Connect the other end of the cable to port 3 and port 4 of the first Catalyst 2924 XL switch.
Step 5 Connect a third Fast EtherChannel cable to port 5 and port 6 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 6 Connect the other end of the cable to port 1 and port 2 of the second Catalyst 2924 XL switch.
Step 7 Connect a fourth Fast EtherChannel cable to port 7 and port 8 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 8 Connect the other end of the cable to port 3 and port 4 of the second Catalyst 2924 XL switch.
You are ready to configure the stack.
The following procedure provides instructions for cabling one Catalyst 2916M XL or Catalyst 2924M XL switch and four Catalyst 2924 XL switches. Figure 3 illustrates the connections.
Step 1 Connect the Fast EtherChannel cable provided to port 1 and port 2 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 2 Connect the other end of the cable to port 1 and port 2 of the first Catalyst 2924 XL switch.
Step 3 Connect a second Fast EtherChannel cable to port 3 and port 4 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 4 Connect the other end of the cable to port 1 and port 2 of the second Catalyst 2924 XL switch.
Step 5 Connect a third Fast EtherChannel cable to port 5 and port 6 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 6 Connect the other end of the cable to port 1 and port 2 of the third Catalyst 2924 XL switch.
Step 7 Connect a fourth Fast EtherChannel cable to port 7 and port 8 of the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 8 Connect the other end of the cable to port 1 and port 2 of the fourth Catalyst 2924 XL switch.
You are ready to configure the stack.
The stack is configured using the Port Group (EtherChannel) page in the Catalyst 2900 series XL switch Manager software and online help for Manager software.
The steps for configuring an EtherChannel port group for a 48/56-port stack are as follows:
Step 1 Display the Port Group (EtherChannel) page for the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 2 Select the ports for Group 1. For example, click source as the forwarding method, select Port 1 (FastEthernet0/1), and click Add. Repeat the process to add ports 2 through 4 (FastEthernet 0/2, 0/3, 0/4).
Step 3 Display the Port Group (EtherChannel) page for the first Catalyst 2924 XL switch.
Step 4 Select the ports for Group 1. For example, click source as the forwarding method, select Port 1 (FastEthernet0/1), and click Add. Repeat the process to add ports 2 through 4 (FastEthernet 0/2, 0/3, 0/4).
Step 5 Repeat Step 1 through Step 4 for the second Catalyst 2924 XL switch, using ports 5 through 8 and Group 2 on the Catalyst 2916M XL or Catalyst 2924M XL switch.
Detailed instructions are available in the Port Group (EtherChannel) section of the Catalyst 2900 Series XL Installation and Configuration Guide and the online help for manager software.
The steps for configuring an EtherChannel port group for a 96/104-port stack are as follows:
Step 1 Display the Port Group (EtherChannel) page for the Catalyst 2916M XL or Catalyst 2924M XL switch.
Step 2 Select the ports for Group 1. For example, click source as the forwarding method, select Port 1 (FastEthernet0/1), and click Add. Repeat the process to add Port 2 (FastEthernet 0/2).
Step 3 Display the Port Group (EtherChannel) page for the first Catalyst 2924 XL switch.
Step 4 Select the ports for Group 1. For example, click source as the forwarding method, select Port 1 (FastEthernet0/1), and click Add. Repeat the process to add Port 2 (FastEthernet 0/2).
Step 5 Repeat Step 1 through Step 4 for the second, third, and fourth Catalyst 2924 XL switches.
(a) For the second Catalyst 2924 XL switch, use ports 3 and 4, and Group 2 on the Catalyst 2916M XL or Catalyst 2924M XL switch.
(b) For the third Catalyst 2924 XL switch, use ports 5 and 6, and Group 3 on the Catalyst 2916M XL or Catalyst 2924M XL switch.
(c) For the fourth Catalyst 2924 XL switch, use ports 7 and 8, and Group 4 on the Catalyst 2916M XL or Catalyst 2924M XL switch.
Detailed instructions are available in the Port Group (EtherChannel) section of the Catalyst 2900 Series XL Installation and Configuration Guide and the online help for manager software.
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