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Cisco Double Tagging On Interface

Hello Experts,

Can someone please explain why I can configure interface gig 0/0/1 with double tagging with the command dot1q tunneling ethertype. However, I can't configure interface gig 0/1/3, on the same device with double tagging?

Hostname#show int gig 0/0/1
GigabitEthernet0/0/1 is up, line protocol is up
  Hardware is GigabitEthernet, address is 0007.84ad.6801 (bia 0007.84ad.6801)
  Description: NNI to xxxxxxxxxxxxxxxxxx
  MTU 9180 bytes, BW 1000000 Kbit, DLY 10 usec, rely 255/255, load 100/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1000Mbps, link type is autonegotiation, media type is LX
  output flow-control is off, input flow-control is off
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 7w1d
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 1600 drops
        Available Bandwidth 1000000 kilobits/sec
  5 minute input rate 123904000 bits/sec, 51182 packets/sec
  5 minute output rate 393949000 bits/sec, 170375 packets/sec
     337336482804 packets input, 55127180579411 bytes, 0 no buffer
     Received 16445267 broadcasts, 0 runts, 1742195846 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 111352301 multicast, 0 pause input
     576640239077 packets output, 192455812545841 bytes, 0 underruns
     Transmitted 1539058 broadcasts
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

________________________________________________________________________________________________

Hostname#show int gig 0/1/3
GigabitEthernet0/1/3 is up, line protocol is up
  Hardware is GigabitEthernet, address is 0007.84ad.6813 (bia 0007.84ad.6813)
  Description: To xxxxxxxxxxxxxxxx
  MTU 9180 bytes, BW 1000000 Kbit, DLY 10 usec, rely 255/255, load 80/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1000Mbps, link type is autonegotiation, media type is SX
  output flow-control is off, input flow-control is off
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:01, output 00:00:00, output hang never
  Last clearing of "show interface" counters 1y37w
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 1 drops
        Available Bandwidth 1000000 kilobits/sec
  5 minute input rate 323595000 bits/sec, 479731 packets/sec
  5 minute output rate 315883000 bits/sec, 468822 packets/sec
     321732032780 packets input, 28739197701474 bytes, 0 no buffer
     Received 22188593 broadcasts, 0 runts, 31649899 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 231982172 multicast, 0 pause input
     804057170421 packets output, 76087978733192 bytes, 0 underruns
     Transmitted 552838 broadcasts
     0 output errors, 0 collisions, 19 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
________________________________________________________________________________________________

Hostname#show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software (C12KPRP-K4P-M), Version 12.0(32)SY7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Mon 29-Sep-08 14:02 by leccese
Image text-base: 0x00010000, data-base: 0x056B4000

ROM: System Bootstrap, Version 12.0(20040128:214555) [assafb-PRP1P_20040101 1.8dev(2.83)] DEVELOPMENT SOFTWARE
BOOTLDR: GS Software (C12KPRP-K4P-M), Version 12.0(32)SY7, RELEASE SOFTWARE (fc1)

 EPUK-THN4-GSR-1 uptime is 3 years, 2 weeks, 1 day, 11 hours, 42 minutes
Uptime for this control processor is 3 years, 2 weeks, 1 day, 7 hours, 59 minutes
System returned to ROM by reload at 00:04:45 GMT Fri Aug 7 2009
System restarted at 23:09:00 GMT Thu Aug 6 2009
System image file is "disk0:c12kprp-k4p-mz.120-32.SY7.bin"

cisco 12410/PRP (MPC7457) processor (revision 0x00) with 2097152K bytes of memory.
MPC7457 CPU at 1263Mhz, Rev 1.2, 512KB L2, 2048KB L3 Cache
Last reset from sw reset
Channelized E1, Version 1.0.

2 Route Processor Cards
2 Clock Scheduler Cards
5 Switch Fabric Cards
4 T1/E1 BITS controllers
2 four-port OC12 POS controllers (8 POS).
1 ISE 10G SPA Interface Card (12000-SIP-600)
1 ISE 10G SPA Interface Card (12000-SIP-601)
3 Ethernet/IEEE 802.3 interface(s)
15 GigabitEthernet/IEEE 802.3 interface(s)
8 Packet over SONET network interface(s)
2043K bytes of non-volatile configuration memory.

500472K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).
65536K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102


Thanks in advance

Carlton
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cpatte7372
Asked:
cpatte7372
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1 Solution
 
bplantierCommented:
whats the error you are getting when you try to configure the qinq tunnel?

can you show the configuration of both interface?
0
 
bplantierCommented:
0
 
cpatte7372Author Commented:
bplantier,

I'm not getting any error message, I'm just not given the option to do 'dot1q tunneling ethertype'

cheers
0
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bplantierCommented:
and did you check the link above?
could you post the config of the ports?
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cpatte7372Author Commented:
bplantier,

I did check the link above and I couldn't find any information that i could use. :-(


interface GigabitEthernet0/1/3
 description To xxxxxxxxxxx
 mtu 9180
 ip vrf forwarding internet-gw
 no ip address
 no ip directed-broadcast
 negotiation auto
 no cdp enable
end


interface GigabitEthernet0/0/1
 description xxxxxxxxxxxxxx
 mtu 9180
 ip vrf forwarding internet-gw
 no ip address
 no ip directed-broadcast
 negotiation auto
 no cdp enable
end
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bplantierCommented:
i'm a bit confused..  hardware speaking, the two gigabit are on different modules. this modules plugged on the same SPA, right? are they both the same type of module?

maybe you could also post a "show inventory" ?
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bplantierCommented:
um..

after some longgggg searching i've found the bug issue on Cisco release note.

CSCek79178
Symptoms: The dot1q tunneling ethertype 0x9100 interface configuration command disappears from the main interface after a route processor (RP) switchover.

Conditions: This symptom is observed after an RP switchover.

Workaround: There is no workaround. 

Open in new window

http://www.cisco.com/en/US/docs/ios/12_0/12_0sy/release/notes/120SYrn.html

I think the only workaround would be a reboot and / or an upgrade.
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cpatte7372Author Commented:
bplantier,

You appear to have come through for me again. Thanks dude....
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cpatte7372Author Commented:
Thanks again dude
0

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