Hello,
I have configured FCIP tunnels before where each tunnel is placed in its own subnet. I couldn't find any documentation that would show that this has to be the case or this is best practice.
I am configuring a scenario where there are two pairs of MDS, one pair per Data Center (Fabric A and B)
So for DC01
Fabric A switch ip address for each interface (there are four gigabit interfaces) are the following (IPs have been changed but concept should remain the same):
Switch A - DC01
GigabitEthernet6/1 - 1.1.1.1
GigabitEthernet6/2 - 1.1.1.2
GigabitEthernet6/3 - 1.1.1.3
GigabitEthernet6/4 - 1.1.1.4
Switch B - DC01
GigabitEthernet6/1 - 1.1.1.5
GigabitEthernet6/2 - 1.1.1.6
GigabitEthernet6/3 - 1.1.1.7
GigabitEthernet6/4 - 1.1.1.8
----------------------------------------
Switch A - DC02
GigabitEthernet6/1 - 2.2.2.1
GigabitEthernet6/2 - 2.2.2.2
GigabitEthernet6/3 - 2.2.2.3
GigabitEthernet6/4 - 2.2.2.4
Switch B - DC02
GigabitEthernet6/1 - 2.2.2.5
GigabitEthernet6/2 - 2.2.2.6
GigabitEthernet6/3 - 2.2.2.7
GigabitEthernet6/4 - 2.2.2.8
Does anyone see any issues that might arise if tunnels are not necessarily placed in their own subnet?
I have added the full configuration of Switch A and B for DC01 at the very bottom for further clarification.
------------------------------
Switch DC01_A
fcip profile 1
ip address 1.1.1.1
fcip profile 2
ip address 1.1.1.2
fcip profile 3
ip address 1.1.1.3
fcip profile 4
ip address 1.1.1.4
vsan database
vsan 10
interface port-channel 10
switchport trunk allowed vsan 10
interface fcip1
channel-group 10 force
no shutdown
use-profile 1
peer-info ipaddr 2.2.2.1
interface fcip2
channel-group 10 force
no shutdown
use-profile 2
peer-info ipaddr 2.2.2.2
interface fcip3
channel-group 11 force
no shutdown
use-profile 3
peer-info ipaddr 2.2.2.3
interface fcip4
channel-group 10 force
no shutdown
use-profile 4
peer-info ipaddr 2.2.2.4
interface GigabitEthernet6/1
ip address 1.1.1.1 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/2
ip address 1.1.1.2 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/3
ip address 1.1.1.3 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/4
ip address 1.1.1.4 255.255.255.0
switchport mtu 3000
no shutdown
Switch DC01_B
fcip profile 1
ip address 1.1.1.5
fcip profile 2
ip address 1.1.1.6
fcip profile 3
ip address 1.1.1.7
fcip profile 4
ip address 1.1.1.8
vsan database
vsan 10
interface port-channel 10
switchport trunk allowed vsan 10
interface fcip1
channel-group 10 force
no shutdown
use-profile 1
peer-info ipaddr 2.2.2.5
interface fcip2
channel-group 10 force
no shutdown
use-profile 2
peer-info ipaddr 2.2.2.6
interface fcip3
channel-group 11 force
no shutdown
use-profile 3
peer-info ipaddr 2.2.2.7
interface fcip4
channel-group 10 force
no shutdown
use-profile 4
peer-info ipaddr 2.2.2.8
interface GigabitEthernet6/1
ip address 1.1.1.5 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/2
ip address 1.1.1.6 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/3
ip address 1.1.1.7 255.255.255.0
switchport mtu 3000
no shutdown
interface GigabitEthernet6/4
ip address 1.1.1.8 255.255.255.0
switchport mtu 3000
no shutdown
