Cisco Catalyst 3560-X Software Configuration Manual page 1038
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Also See for Catalyst 3560-X:
- Command reference manual (1188 pages) ,
- Software configuration manual (1438 pages) ,
- Manual (276 pages)
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Understanding Link-State Tracking
Figure 1-6
Distribution
switch 1
Link-state
Switch A
Link-
state
group 2
Link-
state
group 1
The configuration in
For links to switches and other network devices
•
–
–
•
Link-state group 1 on switch A
–
–
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
1-24
Typical Link-State Tracking Configuration
Link-state
group 1
group 1
Port
Port
Port
5
6
7
Port
8
Port
Port
Port
Port
1
2
3
4
Server 1
Server 2
Primary link
Secondary link
Figure 1-6
Server 1 and server 2 use switch A for primary links and switch B for secondary links.
Server 3 and server 4 use switch B for primary links and switch A for secondary links.
Switch A provides primary links to server 1 and server 2 through link-state group 1. Port 1 is
connected to server 1, and port 2 is connected to server 2. Port 1 and port 2 are the downstream
interfaces in link-state group 1.
Port 5 and port 6 are connected to distribution switch 1 through link-state group 1. Port 5 and
port 6 are the upstream interfaces in link-state group 1.
Chapter 1
Network
Layer 3 link
ensures that the network traffic flow is balanced as follows:
Configuring EtherChannels and Link-State Tracking
Link-state
group 2
Port
Port
6
7
Port
8
Port
Port
1
2
Server 3
Distribution
switch 2
Link-state
group 2
Port
5
Switch B
Port
Port
3
4
Link-
state
group 1
Link-
state
group 2
Server 4
OL-25303-03
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