Hi all,
I would like someone to help me regarding the following issue that I have found trying to configure Etherchannel+dot1q in a b2b connection from an ES20+ port to a LAN SW board.
We have a 7600 with c7600rsp72043-advipservicesk9-mz.122-33.SRE3.
show module
Mod Ports Card Type Model
--- ----- -------------------------------------- ------------------ -----------
1 0 4-subslot SPA Interface Processor-400 7600-SIP-400
2 0 4-subslot SPA Interface Processor-400 7600-SIP-400
3 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX
4 22 7600 ES+ 76-ES+XC-40G3CXL
5 2 Route Switch Processor 720 (Hot) RSP720-3CXL-GE
6 2 Route Switch Processor 720 (Active) RSP720-3CXL-GE
There are two b2b connections between Gi3/1-2 -> 4/0/0-1
I'm trying to configure the following:
!#############################################################
!Initial Conf:
!#############################################################
!
vlan 2
name VLAN0002
!
interface GigabitEthernet3/1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2
switchport mode trunk
switchport nonegotiate
mls qos trust dscp
spanning-tree portfast trunk
spanning-tree bpduguard disable
spanning-tree link-type point-to-point
channel-group 40 mode on
no shut
!
interface GigabitEthernet3/2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2
switchport mode trunk
switchport nonegotiate
mls qos trust dscp
spanning-tree portfast trunk
spanning-tree bpduguard disable
spanning-tree link-type point-to-point
channel-group 40 mode on
no shut
!
interface Port-channel40
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2
switchport mode trunk
switchport nonegotiate
mls qos trust dscp
no shut
!
interface GigabitEthernet4/0/0
mac-address 0248.0010.0400
mtu 1650
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1500
load-interval 30
speed 1000
no mls qos trust
channel-group 45 mode on
hold-queue 1500 in
no shut
!
interface GigabitEthernet4/0/1
mac-address 0248.0010.0401
mtu 1650
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1500
load-interval 30
speed 1000
no mls qos trust
channel-group 45 mode on
hold-queue 1500 in
no shut
!
interface Port-channel45
mtu 1650
no ip address
no shut
!
interface Port-channel45.2
no shut
end
!
!#############################################################
! TESTS
!#############################################################
!Verify : Po40 (Switch Card), Po45 (ES Card) and vlan 2
!#############################################################
!
BB1#show etherchannel 40 summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 2
Number of aggregators: 2
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
40 Po40(SU) - Gi3/1(P) Gi3/2(P)
Last applied Hash Distribution Algorithm: Fixed
!
!
BB1#show etherchannel 45 summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 2
Number of aggregators: 2
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
45 Po45(RU) - Gi4/0/0(P) Gi4/0/1(P)
Last applied Hash Distribution Algorithm: Fixed
!
BB1#show vlan brief
*Apr 28 14:48:46.411: %SYS-5-CONFIG_I: Configured from console by console
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active
2 VLAN0002 active
3 vlan_3_prueba active
1002 fddi-default act/unsup
1003 trcrf-default act/unsup
1004 fddinet-default act/unsup
1005 trbrf-default act/unsup
!
!#############################################################
!Error trying to create a sub-interface dot1q with the Po45
!#############################################################
!
BB1(config)#int port-channel 45.2
BB1(config-subif)#encapsulation dot1Q 2
Command rejected: VLAN 2 cannot be allocated. VLANs 1-1005 are VTP VLANs
VTP mode is client or server and must be changed to Transparent to use VLANs 1-1005
!
!#############################################################
!Change to VTP Mode Transparent/Server to test on transparent mode
!with dot1Q 2
!#############################################################
!
BB1(config-subif)#exit
BB1(config)#vtp mode transparent
Setting device to VTP Transparent mode for VLANS.
BB1(config)#int po45.2
BB1(config-subif)#encapsulation dot1Q 2
Command rejected: VLAN 2 not available
!
!#############################################################
!Now we can assign with dot1Q from the 1005 vlan but it does not allow
!to creat the vlan in the switch board
!#############################################################
!
BB1(config)#vtp mode transparent
Setting device to VTP Transparent mode for VLANS.
BB1(config)#
!
BB1#show vtp status
VTP Version capable : 1 to 3
VTP version running : 3
VTP Domain Name : BB1
VTP Pruning Mode : Disabled
VTP Traps Generation : Disabled
Device ID : 8843.e1de.bb00
Feature VLAN:
--------------
VTP Operating Mode : Transparent
Number of existing VLANs : 7
Number of existing extended VLANs : 0
Feature MST:
--------------
VTP Operating Mode : Transparent
Feature UNKNOWN:
--------------
VTP Operating Mode : Transparent
!
BB1(config)#int po45.2
BB1(config-subif)#encapsulation dot1Q 1006
BB1(config-subif)#ip address 10.10.10.1 255.255.255.0
BB1(config-subif)#exit
BB1(config)#vlan 1006
VLAN id: 1006 is an internal vlan id - cannot use it to create a VTP VLAN.
!
BB1(config)#int po45.2
BB1(config-subif)#no encapsulation dot1Q 1006
BB1(config-subif)#exit
BB1(config)#vlan 1006
BB1(config-vlan)#name Test
BB1(config-vlan)#exit
BB1(config)#int po45.2
BB1(config-subif)#encapsulation dot1Q 1006
Command rejected: VLAN 1006 not available
BB1(config-subif)#exit
!
BB1(config)#vtp mode server
Setting device to VTP Server mode for VLANS.
BB1(config)#
BB1#show vtp status
VTP Version capable : 1 to 3
VTP version running : 3
VTP Domain Name : BB1
VTP Pruning Mode : Disabled
VTP Traps Generation : Disabled
Device ID : 8843.e1de.bb00
Feature VLAN:
--------------
VTP Operating Mode : Server
Number of existing VLANs : 7
Number of existing extended VLANs : 1
Configuration Revision : 0
Primary ID : 0000.0000.0000
Primary Description :
MD5 digest : 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Feature MST:
--------------
VTP Operating Mode : Transparent
Feature UNKNOWN:
--------------
VTP Operating Mode : Transparent
!
BB1(config)#int po45.2
BB1(config-subif)#encapsulation dot1Q 1006
Command rejected: VLAN 1006 not available
!
May someone help me to understand what I'm doing wrong, or if there is a bug or something with this kind of scenario?.
Thanks in advance for your help.
