EX3300 12.3R6.6



  • Dears,

    I have experienced an issue and I’d like if anyone can help.
    I have five EX3300 Junos switches running 12.3R6.6 OS and they are forming a virtual chassis as below snapshot.
    this virtual chassis [the five switches] is uplinked to a core switch.
    the problem is that some time when I faced a power issue at switch 4 [fpc4:] so the switch is not presented in the virtual chassis and this is normal.
    but at this point [when switch 4 is down] the users were experiencing slow connection and some of them couldn’t obtain ip address via DHCP [configured on the core switch] or toke a lot of time to obtain ip address. Also I have a server connected to switch 2 [fpc2:] and I experienced a high packet loss to this server from core switch.

    The issue is remained also even if switch 4 is powered on again.
    The only solution is to powered of all switches and powered on it a gain in sequence.

    noor@SW_3300_Library> show version
    fpc0:
    –------------------------------------------------------------------------
    Hostname: SW_3300_Library
    Model: ex3300-24p
    JUNOS Base OS boot [12.3R6.6]
    JUNOS Base OS Software Suite [12.3R6.6]
    JUNOS Kernel Software Suite [12.3R6.6]
    JUNOS Crypto Software Suite [12.3R6.6]
    JUNOS Online Documentation [12.3R6.6]
    JUNOS Enterprise Software Suite [12.3R6.6]
    JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R6.6]
    JUNOS Routing Software Suite [12.3R6.6]
    JUNOS Web Management [12.3R6.6]
    JUNOS FIPS mode utilities [12.3R6.6]

    fpc1:
    –------------------------------------------------------------------------
    Hostname: SW_3300_Library
    Model: ex3300-24p
    JUNOS Base OS boot [12.3R6.6]
    JUNOS Base OS Software Suite [12.3R6.6]
    JUNOS Kernel Software Suite [12.3R6.6]
    JUNOS Crypto Software Suite [12.3R6.6]
    JUNOS Online Documentation [12.3R6.6]
    JUNOS Enterprise Software Suite [12.3R6.6]
    JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R6.6]
    JUNOS Routing Software Suite [12.3R6.6]
    JUNOS Web Management [12.3R6.6]
    JUNOS FIPS mode utilities [12.3R6.6]

    fpc2:
    –------------------------------------------------------------------------
    Hostname: SW_3300_Library
    Model: ex3300-24p
    JUNOS Base OS boot [12.3R6.6]
    JUNOS Base OS Software Suite [12.3R6.6]
    JUNOS Kernel Software Suite [12.3R6.6]
    JUNOS Crypto Software Suite [12.3R6.6]
    JUNOS Online Documentation [12.3R6.6]
    JUNOS Enterprise Software Suite [12.3R6.6]
    JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R6.6]
    JUNOS Routing Software Suite [12.3R6.6]
    JUNOS Web Management [12.3R6.6]
    JUNOS FIPS mode utilities [12.3R6.6]

    fpc3:
    –------------------------------------------------------------------------
    Hostname: SW_3300_Library
    Model: ex3300-24p
    JUNOS Base OS boot [12.3R6.6]
    JUNOS Base OS Software Suite [12.3R6.6]
    JUNOS Kernel Software Suite [12.3R6.6]
    JUNOS Crypto Software Suite [12.3R6.6]
    JUNOS Online Documentation [12.3R6.6]
    JUNOS Enterprise Software Suite [12.3R6.6]
    JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R6.6]
    JUNOS Routing Software Suite [12.3R6.6]
    JUNOS Web Management [12.3R6.6]
    JUNOS FIPS mode utilities [12.3R6.6]

    fpc4:
    –------------------------------------------------------------------------
    Hostname: SW_3300_Library
    Model: ex3300-24p
    JUNOS Base OS boot [12.3R6.6]
    JUNOS Base OS Software Suite [12.3R6.6]
    JUNOS Kernel Software Suite [12.3R6.6]
    JUNOS Crypto Software Suite [12.3R6.6]
    JUNOS Online Documentation [12.3R6.6]
    JUNOS Enterprise Software Suite [12.3R6.6]
    JUNOS Packet Forwarding Engine Enterprise Software Suite [12.3R6.6]
    JUNOS Routing Software Suite [12.3R6.6]
    JUNOS Web Management [12.3R6.6]
    JUNOS FIPS mode utilities [12.3R6.6]

    {master:1}
    noor@SW_3300_Library> show virtual-chassis

    Preprovisioned Virtual Chassis
    Virtual Chassis ID: 9be0.a4ad.4ecf
    Virtual Chassis Mode: Enabled
    Mstr Mixed Neighbor List
    Member ID Status Serial No Model prio Role Mode ID Interface
    0 (FPC 0) Prsnt GE0215258071 ex3300-24p 0 Linecard NA 1 vcp-255/1/2
    2 vcp-255/1/3
    1 (FPC 1) Prsnt GE0214270968 ex3300-24p 129 Master* NA 0 vcp-255/1/2
    3 vcp-255/1/3
    2 (FPC 2) Prsnt GE0214270974 ex3300-24p 129 Backup NA 0 vcp-255/1/2
    4 vcp-255/1/3
    3 (FPC 3) Prsnt GE0214270952 ex3300-24p 0 Linecard NA 1 vcp-255/1/2
    4 vcp-255/1/3
    4 (FPC 4) Prsnt GE0214270892 ex3300-24p 0 Linecard NA 3 vcp-255/1/2
    2 vcp-255/1/3

    {master:1}
    noor@SW_3300_Library> show system uptime
    fpc0:
    –------------------------------------------------------------------------
    Current time: 2015-12-31 16:12:04 UTC
    System booted: 2015-12-29 18:32:33 UTC (1d 21:39 ago)
    Last configured: 2015-12-30 21:57:17 UTC (18:14:47 ago) by noor
    4:12PM up 1 day, 21:40, 0 users, load averages: 0.10, 0.07, 0.01

    fpc1:

    Current time: 2015-12-31 16:12:04 UTC
    System booted: 2015-12-29 18:12:59 UTC (1d 21:59 ago)
    Protocols started: 2015-12-29 18:25:19 UTC (1d 21:46 ago)
    Last configured: 2015-12-30 21:57:28 UTC (18:14:36 ago) by noor
    4:12PM up 1 day, 21:59, 2 users, load averages: 0.25, 0.19, 0.13

    fpc2:

    Current time: 2015-12-31 16:12:04 UTC
    System booted: 2015-12-29 18:30:48 UTC (1d 21:41 ago)
    Last configured: 2015-12-30 21:57:17 UTC (18:14:47 ago) by noor
    4:12PM up 1 day, 21:41, 0 users, load averages: 0.07, 0.10, 0.05

    fpc3:

    Current time: 2015-12-31 16:12:04 UTC
    System booted: 2015-12-29 18:15:53 UTC (1d 21:56 ago)
    Last configured: 2015-12-30 21:57:17 UTC (18:14:47 ago) by noor
    4:12PM up 1 day, 21:56, 0 users, load averages: 0.03, 0.06, 0.01

    fpc4:

    Current time: 2015-12-31 16:12:05 UTC
    System booted: 2015-12-29 18:20:46 UTC (1d 21:51 ago)
    Last configured: 2015-12-30 21:57:17 UTC (18:14:48 ago) by noor
    4:12PM up 1 day, 21:51, 0 users, load averages: 0.04, 0.04, 0.00

    {master:1}
    noor@SW_3300_Library>

    host#ping 10.10.10.10 re 1000

    Type escape sequence to abort.
    Sending 1000, 100-byte ICMP Echos to 10.10.10.10, timeout is 2 seconds:
    !!!.!!!.!!.!!!
    !!!.!!!.!!!
    !!!.!!!.!!!
    !!!..!!!
    .!!!.!.!.!!!.!!!.
    !!!.!!!.!!..!!!
    !!!.!!!.!!!.!!!
    !!!.!!!.!!!.!!!
    .!!.!.!!!.!!.!!!.!!!.!!!
    !!!.!!!.!!!.!!!
    !!!.!!!.!.!!!
    !!!.!!!.!!!
    !!!.!!!.!!!
    .!!!.!!!
    !!!
    Success rate is 95 percent (955/1000), round-trip min/avg/max = 1/1/4 ms



  • Hii …

    please check the priority of switches.

    Put the highest priority for your master switch(connected to uplink) and go on.

    e.g.
    {master:0}[edit virtual-chassis]
    admin@juni_switch1# show
    no-split-detection;
    member 0 {
        mastership-priority 250;
    }
    member 1 {
        mastership-priority 245;
    }
    member 2 {
        mastership-priority 240;
    }
    member 3 {
        mastership-priority 235;
    }

    Hope it will help you.


 

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