Use Case 3: Changing VSF link speed

The sequence to change the VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. link speed is as follows:

Prerequisites

VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. requires that all ports in all VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. links in the VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. stack must be of the same speed. VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. supports two port speeds, 1G and 10G, and up to 8 ports can be added to a VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. link. There is no default port speed defined. When a VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. link is first configured, the global port speed is automatically set to the interface speed of the port on the link.

Procedure

  1. Add ports of the desired link speed to each link of the stack. Once this is done, the show vsf link detail output would be similar to:

    VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 1 Port State -------- ---------------------------- 1/1 Up : Connected to port 4/1 1/25 Error: Port speed mismatch VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 2 Port State -------- --------------------------- 1/2 Up : Connected to port 2/2 1/26 Error: Port speed mismatch VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 2 Link: 1 Port State -------- ---------------------------- 2/1 Up : Connected to port 3/1 2/25 Error: Port speed mismatch

  2. Connect the ports of the new speed (1/25, 1/26, etc.). Since the ports are kept disabled, it is safe to make the connections at this point. The link will not come up. All links must have ports of both speeds, otherwise the link will fail to come up when the port speed is changed.

  3. Execute the command indicating the target speed: vsf port speed <1G/10G>. This will trigger a reboot of the whole stack. On reboot, the stack will form using the ports which match the new VSF port speed. Ports which do not match will be kept disabled. The output of show vsf link detail after the reboot would be as follows:

    VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 1 Port State -------- -------------------------- 1/1 Error: Port speed mismatch 1/25 Up : Connected to 4/25 VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 2 Port State -------- -------------------------- 1/2 Error: Port speed mismatch 1/26 Up : Connected to 2/26 VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 2 Link: 1 Port State -------- -------------------------- 2/1 Error: Port speed mismatch 2/25 Up : Connected to 3/25

  4. Disconnect the unused ports (1/1, 1/2 etc.). This is a safety measure to avoid accidentally creating a network loop when executing the next step.

  5. Unconfigure the unused ports from the VSF link, using the command no vsf member 1 link 1 1/1 etc. Once this step is completed, the output of show vsf link detail would be as follows:

    VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 1 Port State -------- --------------------- 1/25 Up: Connected to 4/25 VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 1 Link: 2 Port State -------- -------------------- 1/26 Up: Connected to 2/26 VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. Member: 2 Link: 1 Port State -------- --------------------- 2/25 Up: Connected to 3/25

    6. The ports which have been removed from VSF Virtual Switching Framework. Technology that virtualizes two physical devices in the same layer into one Virtual Fabric to provide high availability and scalability. links can now be used as regular Ethernet ports.