The same network and id vlan in different contex in the same ACE

Question

Hello,
I want to know if I can create 2 context in an ACE with the same ID Vlans that other context and this can be in the same network, in the configuration I explain.
Best Regards
++++++++Switch C6513++++++++
svclc multiple-vlan-interfaces
svclc module 6 vlan-group 100
svclc module vlan-group 100 60,233
vlan 60
name inside
vlan 233
name outside
interface vlan 233
ip address 10.24.16.1 255.255.255.0
no shutdown
++++++++Context Admin++++++++
hostname ACE-MOD6
ft interface vlan 350
ip address 10.24.15.34 255.255.255.248
peer ip address 10.24.15.33 255.255.255.248
no shutdown
ft peer 1
heartbeat interval 200
heartbeat count 20
ft-interface vlan 350
ft group 1
peer 1
priority 200
peer priority 150
associate-context Admin
inservice
context SERV1
description SERV1
allocate-interface vlan 60
allocate-interface vlan 233
context SERV2
description SERV2
allocate-interface vlan 60
allocate-interface vlan 233
ft group 2
peer 1
priority 200
peer priority 150
associate-context SERV1
inservice
ft group 3
peer 1
priority 150
peer priority 200
associate-context SERV2
inservice
++++++Contex SERV1++++++
interface vlan 60
ip address 10.24.8.5 255.255.255.0
no shutdown
interface vlan 233
ip address 10.24.16.5 255.255.255.0
no shutdown
ip route 0.0.0.0 0.0.0.0 10.24.16.1
++++++Contex SERV2++++++
interface vlan 60
ip address 10.24.8.6 255.255.255.0
no shutdown
interface vlan 233
ip address 10.24.16.6 255.255.255.0
no shutdown
ip route 0.0.0.0 0.0.0.0 10.24.16.1

Answer 1

Sharing Vlans is possible in routed mode.
Its not possible when ACE is operating in Bridge mode.
You need to use unique IP addresses in each context for shared vlans.
Also make sure to use " shared-vlan-hostid " command.
When contexts share a VLAN, the ACE assigns a different MAC address to the VLAN on each context. The MAC addresses reserved for shared VLANs are 0x001243dc6b00 to 0x001243dcaaff, inclusive. All ACE modules derive these addresses from a global pool of 16k MAC addresses. This pool is divided into 16 banks, each containing 1,024 addresses. An ACE supports only 1,024 shared VLANs, and would use only one bank of MAC addresses out of the pool.
By default, the bank of MAC addresses that the ACE uses is randomly selected at boot time. However, if you configure two ACE modules in the same Layer 2 network and they are using shared VLANs, the ACEs may select the same address bank and use the same MAC addresses. To avoid this conflict, you need to configure the bank that the ACEs will use. "
Above paragraph & More details at
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/ace/v3.00_A2/command/reference/config.html#wp1447465
Syed Iftekhar Ahmed