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Why am I losing link on an ae interface across EX2200 switches in virtual chassis?

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Hi all,

 

Trying to set up an aggregated interface using port 22 on each switch in a 2-switch VChassis. Before I tried setting up the ae interface, both links were up, and the interfaces were in regular L2 access mode. Upon setting up the ae0 interface and adding the ge-[#]/0/22 interfaces to it, I'm seeing that the links (L1) are now down between the switches (the second switch being a Cisco 3550.) 

 

Do I have to do something further to bring the links up on the Juniper side?

 

Some possibly helpful data below:

 

admin@lab-ex2200-stack> show chassis hardware
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                CW021309xxxx      Virtual Chassis
Routing Engine 0 REV 22   750-026468   CW021309xxxx      EX2200-24T-4G
Routing Engine 1 REV 24   750-026468   CW021332xxxx      EX2200-24T-4G
FPC 0            REV 22   750-026468   CW021309xxxx      EX2200-24T-4G
  CPU                     BUILTIN      BUILTIN           FPC CPU
  PIC 0                   BUILTIN      BUILTIN           24x 10/100/1000 Base-T
  PIC 1          REV 22   750-026468   CW021309xxxx      4x GE SFP
    Xcvr 2                NON-JNPR     P680T5L           SFP-SX
    Xcvr 3       a<       NON-JNPR     01120348          SFP-SX
  Power Supply 0                                         PS 100W AC
  Fan Tray                                               Fan Tray
FPC 1            REV 24   750-026468   CW021332xxxx      EX2200-24T-4G
  CPU                     BUILTIN      BUILTIN           FPC CPU
  PIC 0                   BUILTIN      BUILTIN           24x 10/100/1000 Base-T
  PIC 1          REV 24   750-026468   CW021332xxxx      4x GE SFP
    Xcvr 2                NON-JNPR     P6A1MNY           SFP-SX
    Xcvr 3                NON-JNPR     P681NF2           SFP-SX
  Power Supply 0                                         PS 100W AC
  Fan Tray                                               Fan Tray

admin@lab-ex2200-stack> show configuration interfaces ge-0/0/22
ether-options {
    802.3ad ae0;
}

{master:0}
admin@lab-ex2200-stack> show configuration interfaces ge-1/0/22
ether-options {
    802.3ad ae0;
}

{master:0}
admin@lab-ex2200-stack> show configuration interfaces ae0
aggregated-ether-options {
    lacp {
        active;
    }
}
unit 0 {
    family ethernet-switching {
        port-mode access;
        vlan {
            members 3;
        }
    }
}

admin@lab-ex2200-stack> show interfaces ae0 extensive
Physical interface: ae0, Enabled, Physical link is Down
  Interface index: 128, SNMP ifIndex: 551, Generation: 131
  Link-level type: Ethernet, MTU: 1514, Speed: Unspecified, BPDU Error: None,
  MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled,
  Flow control: Disabled, Minimum links needed: 1, Minimum bandwidth needed: 0
  Device flags   : Present Running
  Interface flags: Hardware-Down SNMP-Traps Internal: 0x4000
  Current address: 54:e0:32:9a:04:c3, Hardware address: 54:e0:32:9a:04:c3
  Last flapped   : 2016-12-15 17:23:26 UTC (00:51:56 ago)
  Statistics last cleared: Never
  Traffic statistics:
   Input  bytes  :                    0                    0 bps
   Output bytes  :                    0                    0 bps
   Input  packets:                    0                    0 pps
   Output packets:                    0                    0 pps
   IPv6 transit statistics:
    Input  bytes  :                   0
    Output bytes  :                   0
    Input  packets:                   0
    Output packets:                   0
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0,
    Policed discards: 0, Resource errors: 0
  Output errors:
    Carrier transitions: 0, Errors: 0, Drops: 0, MTU errors: 0,
    Resource errors: 0

  Logical interface ae0.0 (Index 65) (SNMP ifIndex 607) (Generation 130)
    Flags: Hardware-Down Device-Down SNMP-Traps 0x4000 Encapsulation: ENET2
    Statistics        Packets        pps         Bytes          bps
    Bundle:
        Input :             0          0             0            0
        Output:             0          0             0            0
    Adaptive Statistics:
        Adaptive Adjusts:          0
        Adaptive Scans  :          0
        Adaptive Updates:          0
    Link:
      ge-0/0/22.0 <-- down
      ge-1/0/22.0 <-- down
    LACP info:        Role     System             System      Port    Port  Port
                             priority          identifier  priority  number   key
      ge-0/0/22.0    Actor        127  54:e0:32:9a:04:c0       127       1     1
      ge-0/0/22.0  Partner          1  00:00:00:00:00:00         1       1     1
      ge-1/0/22.0    Actor        127  54:e0:32:9a:04:c0       127       3     1
      ge-1/0/22.0  Partner          1  00:00:00:00:00:00         1       3     1
    LACP Statistics:       LACP Rx     LACP Tx   Unknown Rx   Illegal Rx
      ge-0/0/22.0                0           0            0            0
      ge-1/0/22.0                0           0            0            0
    Marker Statistics:   Marker Rx     Resp Tx   Unknown Rx   Illegal Rx
      ge-0/0/22.0                0           0            0            0
      ge-1/0/22.0                0           0            0            0
    Protocol eth-switch, Generation: 148, Route table: 0
      Flags: Is-Primary

-=-=-=-=-

SW4-3550#show etherch summ
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: 1
Number of aggregators:           1

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SD)         LACP      Fa0/11(D)   Fa0/12(D)

SW4-3550#sh runn int Fa0/11
Building configuration...

Current configuration : 113 bytes
!
interface FastEthernet0/11
 switchport access vlan 3
 switchport mode access
 channel-group 1 mode active
end

SW4-3550#sh runn int Fa0/12
Building configuration...

Current configuration : 113 bytes
!
interface FastEthernet0/12
 switchport access vlan 3
 switchport mode access
 channel-group 1 mode active
end

SW4-3550#sh runn int Po1
Building configuration...

Current configuration : 81 bytes
!
interface Port-channel1
 switchport access vlan 3
 switchport mode access
end

 

 


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