Added CoPP show configuration command

[rminnikanti]

Port from master branch PR #3863

What I did

CoPP show commands:

• show copp configuration
• show copp configuration detailed --trapid <trap_id>
• show copp configuration detailed --group

Added UT for the CLI commands.

Why I did it

Details in HLD: sonic-net/SONiC#1943

How to verify it

Verified with UT

Previous command output (if the output of a command-line utility has changed)

New command output (if the output of a command-line utility has changed)

admin@sonic:~$ show copp configuration
TrapId           Trap Group     Action      CBS    CIR  Meter Type    Mode    HW Status
---------------  -------------  --------  -----  -----  ------------  ------  -------------
arp_req          queue4_group2  copy        600    600  packets       sr_tcm  installed
arp_resp         queue4_group2  copy        600    600  packets       sr_tcm  installed
bgp              queue4_group1  trap       6000   6000  packets       sr_tcm  not-installed
bgpv6            queue4_group1  trap       6000   6000  packets       sr_tcm  not-installed
dest_nat_miss    queue1_group2  trap        600    600  packets       sr_tcm  installed
dhcp             queue4_group3  trap        100    100  packets       sr_tcm  installed
dhcpv6           queue4_group3  trap        100    100  packets       sr_tcm  installed
eapol            queue4_group1  trap       6000   6000  packets       sr_tcm  installed
ip2me            queue1_group1  trap       6000   6000  packets       sr_tcm  installed
lacp             queue4_group1  trap       6000   6000  packets       sr_tcm  installed
lldp             queue4_group3  trap        100    100  packets       sr_tcm  installed
neigh_discovery  queue4_group2  copy        600    600  packets       sr_tcm  installed
neighbor_miss    queue1_group3  trap        200    200  packets       sr_tcm  installed
sample_packet    queue2_group1  trap       1000   1000  packets       sr_tcm  not-installed
src_nat_miss     queue1_group2  trap        600    600  packets       sr_tcm  installed
udld             queue4_group3  trap        100    100  packets       sr_tcm  installed

admin@sonic:~$ show copp configuration detailed --trapid neighbor_miss
Trap Group.................. queue1_group3
Trap Action................. trap
Trap Priority............... 1
Queue....................... 1
CBS......................... 200
CIR......................... 200
Meter Type.................. packets
Mode........................ sr_tcm
Yellow Action............... forward
Green Action................ forward
Red Action.................. drop
HW Status................... installed

admin@sonic:~$ show copp configuration detailed --group queue1_group3
Trap Id(s).................. neighbor_miss
Queue....................... 1
Trap Priority............... 1
Trap Action................. trap
Meter Type.................. packets
Mode........................ sr_tcm
CBS......................... 200
CIR......................... 200
Yellow Action............... forward
Green Action................ forward
Red Action.................. drop

Signed-off-by: Ravi Minnikanti [email protected]

[mssonicbld]

/azp run

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Azure Pipelines successfully started running 1 pipeline(s).

[yejianquan]

LGTM