Switch Meshing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Configuring Switch Meshing

 

 

 

 

 

 

Table 14-1. State Descriptions for Show Mesh Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

State

Meaning

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Established

The port is linked to a meshed port on another switch and meshing traffic is

 

 

 

 

 

 

 

 

 

 

 

flowing across the link. The show mesh listing includes the MAC addresses of

 

 

 

 

 

 

 

 

 

 

 

the adjacent switch and direct connection port on the adjacent switch.

 

 

 

 

 

 

Not

The port may be linked to a switch on a port that is not configured for meshing

 

 

 

 

 

 

Established

or has gone down.

 

 

 

 

 

 

 

 

 

 

 

 

 

Initial

The port has just come up as a meshed port and is trying to negotiate meshing.

 

 

 

 

 

 

Disabled

The port is configured for meshing but is not connected to another device.

 

 

 

 

 

 

Error

Indicates a multiple MAC-address error. This occurs when you have two or

 

 

 

 

 

 

 

 

 

 

 

more mesh ports from the same switch linked together through a hub.

 

 

 

 

 

 

Topology

Two meshed switches are connected via a hub and traffic from other, non-

 

 

 

 

 

 

Error

meshed devices, is flowing into the hub. The show mesh listing includes the

 

 

 

 

 

 

 

 

 

 

 

MAC addresses of the adjacent switch and direct connection port on the

 

 

 

 

 

 

 

 

 

 

 

adjacent switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Topology Example with Show Mesh. Suppose that you have the following

 

 

 

 

 

 

topology:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The links from ports C1 and D1 are valid meshed links. All other links

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

are invalid for meshing. Figure 14-12on page 14-16demonstrates

 

 

 

Series 5300XL Switch

 

 

 

 

 

 

the show mesh listing for this topology.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1 A2

B1

 

C1

D1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Port MAC Adrs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0060b0-889e7a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0060b0-889e79

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ports Configured

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for Meshing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch MAC Adr.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch Port Not Configured for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0060b0-889e00

 

 

 

 

 

 

Switch with Port Not Configured for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Meshing

 

 

 

 

 

 

 

 

 

 

 

Meshing, or a Hub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

= Meshed Port

 

 

 

= Non-Meshed, Linked Port

= Non-Linked Port

= Invalid for Meshing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 14-11. Example of a Meshed Topology with Some Mesh Ports Incorrectly Linked

Table 14-2describes the meshing operation in the above topology.

14-15