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I'm running IOS 12.1 and it doesn't support the command &quot;show switch stack-ring activity&quot;. This is the one that will give me what I need. Time to update the IOS. Thank you so much for your feedback. I'm adding these to my list.<br />
<br />

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I'm running IOS 12.1 and it doesn't support the command "show switch stack-ring activity". This is the one that will give me what I need. Time to update the IOS. Thank you so much for your feedback. I'm adding these to my list.



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yah updating IOS is a good start. Glad to help.
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yah updating IOS is a good start. Glad to help.

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I have a stack of six 3750 switches. It is running great, but I had to replace a bad stack cable.<br />
<br />
I'm trying to find out any of the following passing through the stack cables. Can you assist?<br />
<br />
Number of failed bytes? <br />
Number of bytes send?<br />
StackWise bandwidth used?<br />
And, if possibly how to clear these values without resetting the switch stack. <br />
<br />
3750-stack#sh switch stack<br />
&nbsp; Switch # &nbsp; &nbsp;Port 1 &nbsp; &nbsp; &nbsp; Port 2<br />
&nbsp; -------- &nbsp; &nbsp;------ &nbsp; &nbsp; &nbsp; ------<br />
&nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
&nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
&nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
&nbsp; &nbsp; 4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
&nbsp; &nbsp; 5 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
&nbsp; &nbsp; 6 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ok<br />
<br />

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I have a stack of six 3750 switches. It is running great, but I had to replace a bad stack cable.

I'm trying to find out any of the following passing through the stack cables. Can you assist?

Number of failed bytes? 
Number of bytes send?
StackWise bandwidth used?
And, if possibly how to clear these values without resetting the switch stack. 

3750-stack#sh switch stack
  Switch #    Port 1       Port 2
  --------    ------       ------
    1           Ok           Ok
    2           Ok           Ok
    3           Ok           Ok
    4           Ok           Ok
    5           Ok           Ok
    6           Ok           Ok



Cisco 3750 Switch StackWise: How to determine number of bytes going through stack cable?

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.