sros: add support for dual-cp

[jcpvdm]

Added support for dual-cp (custom variant):

• changed mgmt IP addressing to support dual cp.
• populated self.slot variable on SROS_cp instance to avoid need to pass this as argument when calling self methods.
• TCP ports 50XX full range reserved to serial port: 5000->slot A ; 5099->slot B ; others -> LC slot number.
• forced br-mgmt slave interfaces to a custom name so it doesn't conflict with in-band data ports (tapX).
• added slot information on bootstrap logger trace.

sample topology:

name: jmac-sros
topology:
  kinds:
    vr-sros:
      image: vrnetlab/vr-sros:23.7.R2
      license: ../licenses.txt
  nodes:
    r03:
      kind: vr-sros
      type: >- 
        cp: cpu=2 ram=4 chassis=SR-7 slot=A card=cpm5 sfm=m-sfm5-7 ___
        cp: cpu=2 ram=4 chassis=SR-7 slot=B card=cpm5 sfm=m-sfm5-7 ___
        lc: cpu=2 ram=4 max_nics=10 chassis=SR-7 sfm=m-sfm5-7 slot=1 card=iom4-e-b mda/1=me10-10gb-sfp+

  links:
    - endpoints: ["r03:eth2", "r03:eth3"]

[hellt]

Hi @jcpvdm
can you share a clab file contents that starts a single node in dual cpm fashion?

[jcpvdm]

added example. @hellt

[jcpvdm]

Just found now, this is causing an incompatibility when launching the pre-defined distributed variants.
It's expecting a list of cps instead of single cp item.

 "ixr-s": {
        "deployment_model": "distributed",
        # control plane (CPM)
        "max_nics": 54,
        "cp": {
            "min_ram": 3,
            "timos_line": "slot=A chassis=ixr-s card=cpm-ixr-s",
        },
        # line card (IOM/XCM)
        "lcs": [
            {
                "min_ram": 4,
                "timos_line": "chassis=ixr-s slot=1 card=imm48-sfp++6-qsfp28 mda/1=m48-sfp++6-qsfp28",
                "card_config": """/configure card 1 card-type imm48-sfp++6-qsfp28
            /configure card 1 mda 1 mda-type m48-sfp++6-qsfp28
            """,
            }
        ],
    },

Traceback (most recent call last):
  File "/launch.py", line 1425, in <module>
    ia = SROS(
         ^^^^^
  File "/launch.py", line 1147, in __init__
    for cp in variant["cps"]:
              ~~~~~~~^^^^^^^
KeyError: 'cps'

[jcpvdm]

This is functional, but I didn't find an easy solution to make it compatible with Transparent Management. So currently I have added some code to ensure that Transparent Management mode is disabled when dual-cps are deployed.