Generating ifIndexes for various interfaces

ifIndex can be generated offline for various interface types such as physical interface, LAG (port-channel) interface, VE interface, loopback interface, tunnel interface and Management interface.

1. Enter SLX-OS Linux shell from privileged EXEC mode.
   

   device# start-shell

2. Retrieve syntax to find available options to generate ifIndex.
   

   [admin@SLX]# /fabos/cliexec/ifindex_gen.py -h
   usage: ifindex_gen.py [-h] -i INTF_TYPE [-t LC_TYPE] [-m MODE] [-s SLOT]
                         [-p PORT] [-sp SUB_PORT] [-lp LAG_PORT]
                         [-vb VE_BRIDGE_ID] [-vi VE_INTF_ID] [-tt TUNNEL_TYPE]
                         [-ti TUNNEL_ID] [-lbi LB_INTF_ID] [-mi MGMT_INTF_ID]
                         [-d DISP_MODE]
   arguments:
   -h, --help        show this help message and exit 
   -i INTF_TYPE      Interface type: [phy (physical) | lag | ve | tunnel | lb 
                     (loopback) | mgmt (management)] 
   -t LC_TYPE        LC type: [72x10G | 36x100G]                             
   -m MODE           PortGroup Mode: [40g | 100g] (required when LC type is  
                     36x100G) 
   -s SLOT           Slot #: [1-8]                                           
   -p PORT           Port #: [1-72] for 72x10G, [1-60] for 36x100G LC type   
   -sp SUB_PORT      Sub Port #: [1-4] for break-out ports (required when LC 
                     type is 36x100G, PortGroup Mode is 40g and break-out is 
                     enabled)                                                 
   -lp LAG_PORT      LAG Port #: [1-512] 
   -vb VE_BRIDGE_ID  VE Bridge ID: [0-255] 
   -vi VE_INTF_ID    VE Interface ID: [1-4096] 
   -tt TUNNEL_TYPE   Tunnel type: [vxlan | gre | nvgre | mpls] 
   -ti TUNNEL_ID     Tunnel ID: [1-1024] 
   -lbi LB_INTF_ID   Loopback Interface ID: [1-255] 
   -mi MGMT_INTF_ID  Management Interface ID: [1-2] 
   -d DISP_MODE      Output Display Mode: [bin | dec | hex | all] (default: 
                     dec) 
   

   Note: The parameters -t, -m, -s, -p, and -sp are the sub-options specific to physical interface.
3. Generate ifIndex for a specific interface. In this example, ifIndex is generated for a physical interface.
   

   [admin@SLX]# /fabos/cliexec/ifindex_gen.py -i physical -t 72x10G -s 2 -p 65 -d all
   Decimal :  413171855
   Hex     :  18a0808f
   Binary  :  00011000101000001000000010001111