RE: Port Channel not coming up

From: Ananfack, Jeremie N <jeremie_n_ananfack_at_fanniemae.com>
Date: Wed, 29 Jul 2009 07:56:40 -0400

The output is below.
All interfaces haven't been up at the same time. All ports on the switch
side show "connected and trunking".
On the router side, whichever interface is brought up first stays up/up
and the other up/down.
It seems to be a protocol issue.
The logical interface (port-channel) is up/up.

sp01a> (enable) sh por st 9/5
# = 802.1X Authenticated Port Name.

Port Name Status Vlan Duplex Speed Type
----- -------------------- ---------- ---------- ------ -----------
------------
 9/5 connected trunk full 1000
1000BaseSX
==============================

sp01a> (enable) sh por st 9/6
# = 802.1X Authenticated Port Name.

Port Name Status Vlan Duplex Speed Type
----- -------------------- ---------- ---------- ------ -----------
------------
 9/6 connected trunk full 1000
1000BaseSX

=====================================================================

rp01#sh int g1/5
GigabitEthernet1/5 is up, line protocol is down (notconnect)
  Hardware is C6k 1000Mb 802.3, address is 0015.fa42.e6f4 (bia
0015.fa42.e6f4)
  Description: sp01a_9/5
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is SX
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00
=====================================

rp01#sh int g4/15
GigabitEthernet4/15 is up, line protocol is up (connected)
  Hardware is C6k 1000Mb 802.3, address is 00d0.c0d6.4fd2 (bia
00d0.c0d6.4fd2)
  Description: sp01a_9/6
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is SX
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00

________________________________

From: Brian Dooley [mailto:morinack_at_gmail.com]
Sent: Tuesday, July 28, 2009 9:37 PM
To: Ananfack, Jeremie N
Cc: joshua atterbury; Joe Astorino; ccielab_at_groupstudy.com
Subject: Re: Port Channel not coming up

Hi Jeremie

Can we get a sh int on each of the 4 interfaces involved with them all
up?
Have you done any debugging?

-

On Tue, Jul 28, 2009 at 7:34 PM, Ananfack, Jeremie N
<jeremie_n_ananfack_at_fanniemae.com> wrote:

        It is not a cabling issue.
        When I shut both g1/5 and g4/15 down, the port to be first
unshut will
        stay up and the second will stay down.
        Right now, g4/15 is up and g1/5 down.

        ________________________________

        From: joshua atterbury [mailto:joshuaatterbury_at_gmail.com]
        Sent: Tuesday, July 28, 2009 6:15 PM
        To: Ananfack, Jeremie N
        Cc: Joe Astorino; ccielab_at_groupstudy.com

        Subject: Re: Port Channel not coming up

        have you confirmed that it is not a cabling problem? Ie is you
make
        gi4/15 an access port and do the same for the other end does it
come up?

        On Wed, Jul 29, 2009 at 4:44 AM, Ananfack, Jeremie N
        <jeremie_n_ananfack_at_fanniemae.com> wrote:

               The logical interface is already up.
               I was expecting a 2Gig interface and both g1/5 & g4/15 as
        members of the
               channel.
               Still unable to bring up g4/15.

               rp01#sh int po3

               Port-channel3 is up, line protocol is up (connected)

                Hardware is EtherChannel, address is 00d0.c0d6.4fd2 (bia
               00d0.c0d6.4fd2)
                MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
                   reliability 255/255, txload 1/255, rxload 1/255
                Encapsulation ARPA, loopback not set
                Keepalive set (10 sec)
                Full-duplex, 1000Mb/s
                input flow-control is off, output flow-control is off

                Members in this channel: Gi1/5

                ARP type: ARPA, ARP Timeout 04:00:00

               ________________________________

               From: Joe Astorino [mailto:jastorino_at_ipexpert.com]
               Sent: Tuesday, July 28, 2009 1:48 PM
               To: Ananfack, Jeremie N
               Cc: ccielab_at_groupstudy.com
               Subject: Re: Port Channel not coming up

               Allow the native VLAN on the trunks of the physical and
logical
               interfaces.

               On Tue, Jul 28, 2009 at 12:01 PM, Ananfack, Jeremie N
               <jeremie_n_ananfack_at_fanniemae.com> wrote:

                      Hello,

                      Any suggestion as far as bringing this port
channel up?
                      The port channel interface is up but the other
member of
        the
               channel is
                      down and doesn't show as a member of that channel.

                      sw1
                      interface GigabitEthernet1/5
                      GigabitEthernet1/5 is up, line protocol is up
(connected)
                       description 1sharebc-sp01a
                       switchport
                       switchport trunk encapsulation dot1q
                       switchport trunk native vlan 601
                       switchport trunk allowed vlan none
                       switchport mode trunk
                       no ip address
                       no snmp trap link-status
                       channel-group 3 mode desirable non-silent
                      !

                      interface GigabitEthernet4/15
                      GigabitEthernet4/15 is up, line protocol is down
        (notconnect)
                       description 1sharebc-sp01a
                       switchport
                       switchport trunk encapsulation dot1q
                       switchport trunk native vlan 601
                       switchport trunk allowed vlan none
                       switchport mode trunk
                       no ip address
                       no snmp trap link-status
                       channel-group 3 mode desirable non-silent
                      !

                      interface Port-channel3
                      Port-channel3 is up, line protocol is up
(connected)
                       description 1sharebc-sp01a
                      Members in this channel: Gi1/5
                       switchport
                       switchport trunk encapsulation dot1q
                       switchport trunk native vlan 601
                       switchport trunk allowed vlan none
                       switchport mode trunk
                       no ip address

        ==========================================================

                      sw2
                      set vlan 601 9/5-6
                      clear trunk 9/5 1-4094
                      set trunk 9/5 on dot1q
                      clear trunk 9/6 1-4094
                      set trunk 9/6 on dot1q
                      set spantree portfast 9/5-8 disable
                      set port channel 9/5-6 mode desirable non-silent

                      Blogs and organic groups at http://www.ccie.net
Received on Wed Jul 29 2009 - 07:56:40 ART

This archive was generated by hypermail 2.2.0 : Sat Aug 01 2009 - 13:10:23 ART