asg_arp

This command is supported only on these:

  • ElasticXL Cluster

  • Maestro Security Group

  • Scalable Chassis Security Group

Note - You must run this command in the Expert mode.

Description

Shows the ARP cache table.

Syntax

asg_arp -h

asg_arp

      -b <SGM IDs>

      -i <Name of Interface>

      --legacy

      -m <MAC Address>

      <Hostname>

      -v

      --verify

Parameters

Parameter

Description

-h

Shows the built-in help.

No Parameters

Shows the ARP cache table.

-b <SGM IDs>

Specifies the Security Group Members, for which to run this command.

By default, applies to all Security Group Members.

Applies to Security Group Members as specified by the <SGM IDs>.

<SGM IDs> can be:

  • No <SGM IDs> specified, or all

    Applies to all Security Group Members and all Sites

  • One Security Group Member (for example, 1_1)

  • A comma-separated list of Security Group Members (for example, 1_1,1_4)

  • A range of Security Group Members (for example, 1_1-1_4)

  • One Site (chassis1, or chassis2)

  • The Active Site (chassis_active)

-i <Name of Interface>

Shows the ARP entries only for the specified interface.

--legacy

Shows the ARP entries in the legacy format.

-m <MAC Address>

Shows the ARP entries only for the specified MAC Address.

<Hostname>

Shows the ARP entries only for the specified Hostname.

-v

Shows the ARP entries in the verbose format (also shows the IDs of the Security Group Members).

--verify

Runs MAC Address verification on Security Group Members.

Examples

This example shows the ARP cash in the Default Mode:

[Expert@SG-s01-01:0]# asg_arp
Address              HWaddress            Iface
172.23.19.4          54:7F:EE:6A:D0:BC    eth1-Mgmt2
1_01                 00:1C:7F:01:04:FE    Sync
1_2                  00:1C:7F:02:04:FE    Sync
ssm1                 02:02:03:04:05:40    eth1-CIN
ssm2                 04:02:03:04:05:40    eth2-CIN
[Expert@SG-s01-01:0]#

This example shows the ARP cash in the Verbose Mode:

[Expert@SG-s01-01:0]# asg_arp -v
Address              HWtype   HWaddress            Flags Mask  Iface                SGMs
172.23.19.4          ether    54:7F:EE:6A:D0:BC    C           eth1-Mgmt2           1_01
1_01                 ether    00:1C:7F:01:04:FE    C           Sync                 1_02
1_2                  ether    00:1C:7F:02:04:FE    C           Sync                 1_01
ssm1                 ether    02:02:03:04:05:40    C           eth1-CIN             1_01,1_02
ssm2                 ether    04:02:03:04:05:40    C           eth2-CIN             1_01
[Expert@SG-s01-01:0]#

This example shows the output of the MAC address verification (on a Single Chassis):

[Expert@SG-s01-01:0]# asg_arp --verify
Address              HWtype   HWaddress            Flags Mask  Iface                SGMs
172.23.19.4          ether    54:7F:EE:6A:D0:BC    C           eth1-Mgmt2           1_01
1_01                 ether    00:1C:7F:01:04:FE    C           Sync                 1_02
1_2                  ether    00:1C:7F:02:04:FE    C           Sync                 1_01
ssm1                 ether    02:02:03:04:05:40    C           eth1-CIN             1_01,1_02
ssm2                 ether    04:02:03:04:05:40    C           eth2-CIN             1_01

MAC address for IP 172.23.19.4 is inconsistent across the SGMs

--------------------------------------------------------------------------------
Collecting information from SGMs...
--------------------------------------------------------------------------------
Verifying FW1 mac magic value on all SGMs...
Success
--------------------------------------------------------------------------------
Verifying IPV4 and IPV6 kernel values...
Success
--------------------------------------------------------------------------------
Verifying FW1 mac magic value in /etc/smodb.json...
Success
--------------------------------------------------------------------------------
Verifying MAC address on local chassis (Chassis 1)...
Success
--------------------------------------------------------------------------------
[Expert@SG-s01-01:0]#

Use these commands to confirm that the Unique MAC value has changed.

For the Unique MAC database value, run this command in the Expert mode:

g_allc dbget chassis:private:magic_mac

Example:

[Expert@SG-s01-01:0]# g_allc dbget chassis:private:magic_mac

-*- 4 sgms: 1_01 1_02 2_02 2_03 -*-

22

For the Unique MAC Kernel value, run this command in Gaia gClish:

fw ctl get int fwha_mac_magic

Example:

[Global] SG-s01-01> fw ctl get int fwha_mac_magic

-*- 4 sgms: 1_01 1_02 2_02 2_03 -*-

fwha_mac_magic = 22

[Global] SG-s01-01>

You can display the magic attribute for interfaces of the type ethX-YZ with the "ifconfig" command in the Expert mode.

Example:

[Expert@SG-s01-01:0]# ifconfig eth1-01
eth1-01 Link encap:Ethernet HWaddr 00:1C:7F:81:01:16
            inet6 addr: fe80::21c:7fff:fe81:116/64 Scope:Link
            UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
            RX packets:154820 errors:0 dropped:0 overruns:0 frame:0
            TX packets:23134 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:0 RX bytes:15965660 (15.2 MiB)
            TX bytes:2003398 (1.9 MiB)
[Expert@SG-s01-01:0]#

This example shows ARP cache for each Security Group Member in the Legacy Mode output:

[Expert@SG-s01-01:0]# asg_arp --legacy
1_01:
Address                  HWtype  HWaddress           Flags Mask            Iface
ssm2                     ether   04:02:03:04:05:40   C                     eth2-CIN
ssm1                     ether   02:02:03:04:05:40   C                     eth1-CIN
1_2                      ether   00:1C:7F:02:04:FE   C                     Sync
172.23.19.4              ether   54:7F:EE:6A:D0:BC   C                     eth1-Mgmt2
1_02:
Address                  HWtype  HWaddress           Flags Mask            Iface
1_01                     ether   00:1C:7F:01:04:FE   C                     Sync
ssm1                     ether   02:02:03:04:05:40   C                     eth1-CIN
[Expert@SG-s01-01:0]#