Show interface status does not work with portchannels

[d-dashkov]

Description

Adding portchannels breaks the script for showing interface status

Steps to reproduce the issue:

1. Create portchannel
   $ sudo config portchannel add PortChannel0011
2. Execute interface status command
   $ show int status

Describe the results you received:

Traceback (most recent call last):
  File "/usr/local/bin/intfutil", line 521, in <module>
    main()
  File "/usr/local/bin/intfutil", line 513, in main
    interface_stat.display_intf_status()
  File "/usr/local/bin/intfutil", line 354, in display_intf_status
    self.get_intf_status()
  File "/usr/local/lib/python3.7/dist-packages/utilities_common/multi_asic.py", line 137, in wrapped_run_on_all_asics
    func(self,  *args, **kwargs)
  File "/usr/local/bin/intfutil", line 435, in get_intf_status
    self.portchannel_speed_dict = po_speed_dict(self.po_int_dict, self.db)
  File "/usr/local/bin/intfutil", line 249, in po_speed_dict
    interface_speed = '{}G'.format(interface_speed[:-3])
TypeError: 'NoneType' object is not subscriptable

Describe the results you expected:

      Interface            Lanes    Speed    MTU    FEC    Alias             Vlan    Oper    Admin            Type    Asym PFC
---------------  ---------------  -------  -----  -----  -------  ---------------  ------  -------  --------------  ----------
      Ethernet0          0,1,2,3      40G   9100    N/A     etp1           routed    down       up             N/A         N/A
      Ethernet4          4,5,6,7      N/A   9100    N/A     etp2  PortChannel0011    down       up             N/A         N/A
      Ethernet8        8,9,10,11      N/A   9100    N/A     etp3           routed    down       up             N/A         N/A
     Ethernet12      12,13,14,15      N/A   9100    N/A     etp4           routed    down       up             N/A         N/A
     Ethernet16      16,17,18,19      N/A   9100    N/A     etp5           routed    down       up             N/A         N/A
     Ethernet20      20,21,22,23      N/A   9100    N/A     etp6           routed    down       up             N/A         N/A
     Ethernet24      24,25,26,27      N/A   9100    N/A     etp7           routed      up       up  QSFP+ or later         N/A
     Ethernet28      28,29,30,31      N/A   9100    N/A     etp8           routed    down       up             N/A         N/A
     Ethernet32      32,33,34,35      N/A   9100    N/A     etp9           routed      up       up  QSFP+ or later         N/A
     Ethernet36      36,37,38,39      N/A   9100    N/A    etp10           routed      up       up  QSFP+ or later         N/A
     Ethernet40      40,41,42,43      N/A   9100    N/A    etp11           routed      up       up  QSFP+ or later         N/A
     Ethernet44      44,45,46,47      N/A   9100    N/A    etp12           routed      up       up  QSFP+ or later         N/A
     Ethernet48      48,49,50,51      N/A   9100    N/A    etp13            trunk      up       up  QSFP+ or later         N/A
     Ethernet52      52,53,54,55      N/A   9100    N/A    etp14           routed      up       up  QSFP+ or later         N/A
     Ethernet56      56,57,58,59      N/A   9100    N/A    etp15           routed    down       up  QSFP+ or later         N/A
     Ethernet60      60,61,62,63      N/A   9100    N/A    etp16           routed      up       up  QSFP+ or later         N/A
     Ethernet64      64,65,66,67      N/A   9100    N/A    etp17           routed      up       up  QSFP+ or later         N/A
     Ethernet68      68,69,70,71      N/A   9100    N/A    etp18           routed      up       up  QSFP+ or later         N/A
     Ethernet72      72,73,74,75      N/A   9100    N/A    etp19            trunk      up       up  QSFP+ or later         N/A
     Ethernet76      76,77,78,79      N/A   9100    N/A    etp20           routed      up       up  QSFP+ or later         N/A
     Ethernet80      80,81,82,83      N/A   9100    N/A    etp21  PortChannel0002      up       up  QSFP+ or later         N/A
     Ethernet84      84,85,86,87      N/A   9100    N/A    etp22           routed    down       up             N/A         N/A
     Ethernet88      88,89,90,91      N/A   9100    N/A    etp23           routed    down       up             N/A         N/A
     Ethernet92      92,93,94,95      N/A   9100    N/A    etp24           routed    down       up             N/A         N/A
     Ethernet96      96,97,98,99      N/A   9100    N/A    etp25           routed    down       up             N/A         N/A
    Ethernet100  100,101,102,103      N/A   9100    N/A    etp26           routed    down       up             N/A         N/A
    Ethernet104  104,105,106,107      N/A   9100    N/A    etp27           routed    down       up             N/A         N/A
    Ethernet108  108,109,110,111      N/A   9100    N/A    etp28           routed    down       up             N/A         N/A
    Ethernet112  112,113,114,115      N/A   9100    N/A    etp29           routed    down       up             N/A         N/A
    Ethernet116  116,117,118,119      N/A   9100    N/A    etp30           routed    down       up             N/A         N/A
    Ethernet120  120,121,122,123      N/A   9100    N/A    etp31           routed    down       up             N/A         N/A
    Ethernet124  124,125,126,127      N/A   9100    N/A    etp32           routed    down       up             N/A         N/A
PortChannel0002              N/A      N/A   9100    N/A      N/A           routed      up       up             N/A         N/A
PortChannel0011              N/A      N/A   9100    N/A      N/A           routed    down       up             N/A         N/A

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

$ show version

SONiC Software Version: SONiC.master.514-f99dbff7
Distribution: Debian 10.7
Kernel: 4.19.0-9-2-amd64
Build commit: f99dbff7
Build date: Thu Jan  7 11:32:16 UTC 2021
Built by: johnar@jenkins-worker-7

Platform: x86_64-mlnx_msn2700-r0
HwSKU: Mellanox-SN2700
ASIC: mellanox
ASIC Count: 1
Serial Number: MT2020T04280
Uptime: 12:58:37 up 9 days, 19:33,  2 users,  load average: 5.41, 6.57, 6.43

Docker images:
REPOSITORY                    TAG                   IMAGE ID            SIZE
docker-syncd-mlnx             latest                8537800d1c46        536MB
docker-syncd-mlnx             master.514-f99dbff7   8537800d1c46        536MB
docker-sflow                  latest                0a822def5cfe        452MB
docker-sflow                  master.514-f99dbff7   0a822def5cfe        452MB
docker-snmp                   latest                2069a95759c9        432MB
docker-snmp                   master.514-f99dbff7   2069a95759c9        432MB
docker-teamd                  latest                08b104d44f5b        451MB
docker-teamd                  master.514-f99dbff7   08b104d44f5b        451MB
docker-router-advertiser      latest                8cb6defab300        391MB
docker-router-advertiser      master.514-f99dbff7   8cb6defab300        391MB
docker-platform-monitor       latest                5276a7643b58        672MB
docker-platform-monitor       master.514-f99dbff7   5276a7643b58        672MB
docker-lldp                   latest                b246a382937e        431MB
docker-lldp                   master.514-f99dbff7   b246a382937e        431MB
docker-database               latest                01e9cf4ea8cf        391MB
docker-database               master.514-f99dbff7   01e9cf4ea8cf        391MB
docker-orchagent              latest                b0ef7ae5f9a4        468MB
docker-orchagent              master.514-f99dbff7   b0ef7ae5f9a4        468MB
docker-nat                    latest                33f3d25505eb        453MB
docker-nat                    master.514-f99dbff7   33f3d25505eb        453MB
docker-sonic-telemetry        latest                873eda70c348        465MB
docker-sonic-telemetry        master.514-f99dbff7   873eda70c348        465MB
docker-dhcp-relay             latest                90a1733f4c5d        397MB
docker-dhcp-relay             master.514-f99dbff7   90a1733f4c5d        397MB
docker-sonic-mgmt-framework   latest                c6b96579ad33        604MB
docker-sonic-mgmt-framework   master.514-f99dbff7   c6b96579ad33        604MB
docker-fpm-frr                latest                d71593b61940        468MB
docker-fpm-frr                master.514-f99dbff7   d71593b61940        468MB

[prsunny]

in what case is speed N/A ? is it a missing config?

[d-dashkov]

The redis LAG_TABLE entry is missing speed information and when I tried execute intfutil it returned None, which caused the script to crash. In other cases with Ethernet interfaces, PORT_TABLE also doesn't contain information about the port speed by default, but it works well and shows N/A. Therefore, I suggested a PR in which, with such an error, the script does not crash, but returns N/A.