Switching

Is there a command line way of shutting down particular ports on an Ex2200 running 12.3? Sure i can disable ports via a config change. But thats a slow process.

Use "# set interface <interface-name> disable " to disable ports

And for deactivating use " #deactivate interface <interface-name> 

I've only ever done it with the disable command.  Does deactivate leave the link up but stops it from passing traffic?

The behavior is as you describe.  Deactivate will allow link to come up.  But there is no configuration on the port so no traffic will pass.

Deactivate turns off the configuration at the point in the hierarchy that you use the command so none of that configuration will apply.  But it wlll all still be present so it is easy to turn it back on.  this is convenient for temporary sitatuations where you want to toggle a configuraiton section.

Disable brings down that physical port.

your other option is to delete the interface configuration.  This will also allow the link to come up but no traffic will pass and there will be no saved configuration on the port.

Using 'set interface XXX disable' is a config command that requires committing.

I was hoping for a run time command which can be used on the fly

Use ifconfig from shell as root:

{master:0}
lab@ex2200> show interfaces ge-0/0/1
Physical interface: ge-0/0/1, Enabled, Physical link is Up
  Interface index: 130, SNMP ifIndex: 506
  Link-level type: Ethernet, MTU: 1514, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled,
  Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Link flags     : None
  CoS queues     : 8 supported, 8 maximum usable queues
  Current address: 2c:6b:f5:97:27:c4, Hardware address: 2c:6b:f5:97:27:c4
  Last flapped   : 2015-06-30 12:05:56 CEST (6d 20:19 ago)
  Input rate     : 527984 bps (999 pps)
  Output rate    : 527984 bps (999 pps)
  Active alarms  : None
  Active defects : None
  Interface transmit statistics: Disabled

  Logical interface ge-0/0/1.0 (Index 70) (SNMP ifIndex 507)
    Flags: SNMP-Traps 0x4000 Encapsulation: ENET2
    Input packets : 86354
    Output packets: 43255
    Protocol eth-switch
      Flags: None

{master:0}
lab@ex2200> start shell user root
Password:
root@ex2200:RE:0% ifconfig ge-0/0/1
ge-0/0/1:    encaps: ether; framing: ether
    flags=0x3/0xc000 <PRESENT|RUNNING>
    curr media: i802 2c:6b:f5:97:27:c4
ge-0/0/1.0:    flags=0xc000 <UP|MULTICAST>
    <unknown> mtu 0
root@ex2200:RE:0% ifconfig ge-0/0/1 down
root@ex2200:RE:0% cli -c "show interfaces ge-0/0/1"
Physical interface: ge-0/0/1, Administratively down, Physical link is Down
  Interface index: 130, SNMP ifIndex: 506
  Link-level type: Ethernet, MTU: 1514, Speed: 1000mbps, Duplex: Full-Duplex, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled,
  Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper
  Device flags   : Present Running Down
  Interface flags: Hardware-Down Down SNMP-Traps Internal: 0x4000
  Link flags     : None
  CoS queues     : 8 supported, 8 maximum usable queues
  Current address: 2c:6b:f5:97:27:c4, Hardware address: 2c:6b:f5:97:27:c4
  Last flapped   : 2015-07-07 08:25:21 CEST (00:00:10 ago)
  Input rate     : 0 bps (0 pps)
  Output rate    : 0 bps (0 pps)
  Active alarms  : LINK
  Active defects : LINK
  Interface transmit statistics: Disabled

  Logical interface ge-0/0/1.0 (Index 70) (SNMP ifIndex 507)
    Flags: Device-Down SNMP-Traps 0x4000 Encapsulation: ENET2
    Input packets : 86356
    Output packets: 43256
    Protocol eth-switch
      Flags: None
root@ex2200:RE:0% ifconfig ge-0/0/1 up
root@ex2200:RE:0% cli -c "show interfaces ge-0/0/1"
Physical interface: ge-0/0/1, Enabled, Physical link is Up
  Interface index: 130, SNMP ifIndex: 506
  Link-level type: Ethernet, MTU: 1514, Speed: 1000mbps, Duplex: Full-Duplex, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled,
  Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Link flags     : None
  CoS queues     : 8 supported, 8 maximum usable queues
  Current address: 2c:6b:f5:97:27:c4, Hardware address: 2c:6b:f5:97:27:c4
  Last flapped   : 2015-07-07 08:25:47 CEST (00:00:01 ago)
  Input rate     : 66000 bps (122 pps)
  Output rate    : 0 bps (0 pps)
  Active alarms  : None
  Active defects : None
  Interface transmit statistics: Disabled

  Logical interface ge-0/0/1.0 (Index 70) (SNMP ifIndex 507)
    Flags: SNMP-Traps 0x4000 Encapsulation: ENET2
    Input packets : 86356
    Output packets: 43258
    Protocol eth-switch
      Flags: None
root@ex2200:RE:0%


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If this worked for you please flag my post as an "Accepted Solution" so others can benefit. A kudo would be cool if you think I earned it.

That's a neat trick using the shell.  Thanks for sharing that.  I'm assuming that will still journal a entry in the log that the port was shutdown correct?