ICX 7250 Trunk Configuration
When a 10G-port license is installed, two stacking trunks containing two ports each can be configured on each ICX 7250 unit.
Stacked trunks can be formed using the following port combinations:
- Stack ports 1/2/1 and 1/2/2
- Stack ports 1/2/3 and 1/2/4
- Stack ports 1/2/5 and 1/2/6
- Stack ports 1/2/7 and 1/2/8
Two-unit linear-topology trunks can be formed using the following port combinations:
Refer to Support for two-unit stack linear-topology trunks for more information.The following example designates ports 1/2/1 and 1/2/3 as the valid-stack-port set to be used and creates two trunks.
ICX7250-24P Router(config)# stack unit 1 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/1 to 1/2/2 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/3 to 1/2/4
The following example uses the other valid-stack-port set (1/2/5, 1/2/7).
ICX7250-24P Router(config)# stack unit 1 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/5 to 1/2/6 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/7 to 1/2/8
The following example creates a linear-topology trunk containing ports 1/2/1 through 1/2/4:
ICX7250-24P Router(config)# stack unit 1 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/1 to 1/2/4
The following example creates a linear-topology trunk containing ports 1/2/5 through 1/2/8:
ICX7250-24P Router(config)# stack unit 1 ICX7250-24P Router(config-unit-1)# stack-trunk 1/2/5 to 1/2/8
Creating ICX 7250 Trunks in a Production Environment
The
stack-trunk command cannot be used in a live environment. Instead, use the
multi-stack-trunk command to configure both ends of a trunk simultaneously.
The following example creates a multi-stack-trunk cross-cabled connection between unit 1 and unit 2 on ports 1/2/7 through 1/2/8 and ports 2/2/5 through 2/2/6.
ICX7250-48 Router(config-unit-1)# multi-stack-trunk 1/2/7 to 1/2/8 and 2/2/5 to 2/2/6
ICX7250-48 Router(config-unit-1)# show stack
T=15d23h18m0.7: alone: standalone, D: dynamic cfg, S: static
ID Type Role Mac Address Pri State Comment
1 S ICX7250-48 active cc4e.24b4.23e8 0 local Ready
2 S ICX7250-24P member cc4e.24b4.8aa8 0 remote Ready
3 S ICX7250-24 standby cc4e.24b4.8cc4 0 remote Ready
4 S ICX7250-48P member cc4e.24b4.2d84 0 remote Ready
active standby
+---+ +---+ +---+ +---+
=2/5| 1 |2/7==2/5| 2 |2/7--2/5| 4 |2/7--2/5| 3 |2/7=
| +---+ +---+ +---+ +---+ |
| |
|--------------------------------------------------|
Standby u3 - protocols ready, can failover or manually switch over
Current stack management MAC is cc4e.24b4.23e8
The double lines between unit 1 and unit 2 in the previous output indicate a trunk connection with two ports from each unit.