Cisco MDS 9000 Series Configuration Manual page 145

Chapter 5 Configuring Trunking
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Figure 5-5
Switch 1
VSAN1
VSAN2
VSAN3
VSAN4
VSAN5
You can configure a select set of VSANs (from the allowed-active list) to control access to the VSANs
specified in a trunking ISL.
Using
(see
connecting to switch 1, the operational allowed list of VSANs for each ISL would be as follows:
• The ISL between switch 1 and switch 2 includes VSAN 1 and VSAN 3.
• The ISL between switch 2 and switch 3 includes VSAN 1 and VSAN 2.
The ISL between switch 3 and switch 1 includes VSAN 1, 2, and 5.
•
Consequently, VSAN 2 can only be routed from switch 1 through switch 3 to switch 2.
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Default Allowed-Active VSAN Configuration
Figure 5-5 as an example, you can configure the list of allowed VSANs on a per-interface basis
Figure 5-6). For example, if VSANs 2 and 4 are removed from the allowed VSAN list of ISLs
Switch 2
VSAN1
VSAN2
VSAN3
Switch 3
VSAN1
VSAN2
VSAN4
VSAN5
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
Configuring Trunk Mode and VSAN List
5-11