Switching

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  • 1.  Can't talk between Switches after update

    Posted 03-02-2016 10:18

    I'm having a wierd issue where after rebooting one of my ex4300s. It can no longer ping irb ips on the adjacent switch. Currently, this is a lab environment and just working on getting a working setup before migrating off cisco. When I ping I get "No route to host". Also, both sets of IRB interfaces are up.  Each set can ping the other vlan on the same switch but not across the LACP. Switches are both on 14.1X53-D30.3

     

    Any ideas?

     

    Environment:

    Switch 1 

    Vlan100 IRB IP 10.10.100.1

    Vlan200 IRB IP  10.10.200.1

     

    Switch 2 

    Vlan100  IRB IP 10.10.100.2

    Vlan 200 IRB IP  10.10.200.2

     

    These switches are connected via LACP and the lag shows up and working 

     

    Switch 1:


    Aggregated interface: ae0
    LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
    ge-0/0/46 Actor No No Yes Yes Yes Yes Fast Active
    ge-0/0/46 Partner No No Yes Yes Yes Yes Fast Active
    ge-0/0/47 Actor No No Yes Yes Yes Yes Fast Active
    ge-0/0/47 Partner No No Yes Yes Yes Yes Fast Active
    LACP protocol: Receive State Transmit State Mux State
    ge-0/0/46 Current Fast periodic Collecting distributing
    ge-0/0/47 Current Fast periodic Collecting distributing

     

    Switch: 1 Config:

    interfaces {
    ge-0/0/0 {
    unit 0 {
    family ethernet-switching {
    interface-mode access;
    vlan {
    members Management;
    }
    storm-control default;
    }
    }
    }
    ge-0/0/1 {
    unit 0 {
    family ethernet-switching {
    interface-mode access;
    vlan {
    members Work;
    }
    storm-control default;

     

    ge-0/0/46 {
    ether-options {
    802.3ad ae0;
    }
    inactive: unit 0 {
    family ethernet-switching {
    storm-control default;
    }
    }
    }
    ge-0/0/47 {
    ether-options {
    802.3ad ae0;
    }
    inactive: unit 0 {
    family ethernet-switching {
    storm-control default;
    }
    }

     

    ae0 {
    enable;
    native-vlan-id 500;
    aggregated-ether-options {
    lacp {
    active;
    periodic fast;
    }
    }
    unit 0 {
    family ethernet-switching {
    interface-mode trunk;
    vlan {
    members all;
    }
    }
    }
    }
    irb {
    unit 100 {
    family inet {
    address 10.10.100.1/24;
    }
    }
    unit 200 {
    family inet {
    address 10.10.200.1/24;
    }

     

    vlans {
    Management {
    vlan-id 100;
    l3-interface irb.100;
    }
    NATIVE {
    vlan-id 500;
    }
    Work {
    vlan-id 200;
    l3-interface irb.200;
    }
    }

     

     

     

     

    Switch 2 Config:

     

    Aggregated interface: ae0
    LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
    ge-0/0/46 Actor No No Yes Yes Yes Yes Fast Active
    ge-0/0/46 Partner No No Yes Yes Yes Yes Fast Active
    ge-0/0/47 Actor No No Yes Yes Yes Yes Fast Active
    ge-0/0/47 Partner No No Yes Yes Yes Yes Fast Active
    LACP protocol: Receive State Transmit State Mux State
    ge-0/0/46 Current Fast periodic Collecting distributing
    ge-0/0/47 Current Fast periodic Collecting distributing

     

    ge-0/0/46 {
    ether-options {
    802.3ad ae0;
    }
    inactive: unit 0 {
    family ethernet-switching {
    vlan {
    members default;
    }
    storm-control default;
    }
    }
    }
    ge-0/0/47 {
    ether-options {
    802.3ad ae0;
    }
    inactive: unit 0 {
    family ethernet-switching {
    vlan {
    members default;
    }
    storm-control default;
    }

     

     

    ae0 {
    enable;
    native-vlan-id 500;
    aggregated-ether-options {
    lacp {
    active;
    periodic fast;
    }
    }
    unit 0 {
    family ethernet-switching {
    interface-mode trunk;
    vlan {
    members all;
    }
    }
    }
    }
    irb {
    unit 100 {
    family inet {
    address 10.10.100.2/32;
    }
    }
    unit 200 {
    family inet {
    address 10.10.200.2/32;
    }
    }

     

     

    vlans {
    Management {
    vlan-id 100;
    l3-interface irb.100;
    }
    Native {
    vlan-id 500;
    }
    Work {
    vlan-id 200;
    l3-interface irb.200;
    }



     

     



  • 2.  RE: Can't talk between Switches after update
    Best Answer

    Posted 03-02-2016 11:04

    Seems like you have wrong subnet mask on Switch2. Need /24 instead of /32



  • 3.  RE: Can't talk between Switches after update

    Posted 03-02-2016 11:22

    Yep...overlooked it in the config. Which is very strange, I looked at the config before and it was /24. Hopefully, it was a one time blipp on upgrade. Thanks for you help though!