Ethernet Operation, Administration and Management 802.1ag CFM
By scrolling the pane to the right, this text is revealed:
1st line: Seq Id = 1, TTL = 64, RX Flag = 1, Terminal MEP = No,
Egress ID = 01-92-00-03-85-00-8D-C9, Next Egress ID = 00-05-00-03-85-00-28-C6, Relay
= MIP Forward DB,
CHS ID Type = ENTPHNAME, CHS ID = Z0525G40008, Mang. Addr = 10.1.4.1 (IPV4),
Ingress = Ok, Ingress MAC = 00-03-85-00-28-C6, Ingress Port ID = ETH-6 (LOCAL),
Egress = Ok, Egress MAC = 00-03-85-00-28-C6, Egress Port ID = ETH-4 (LOCAL),
ORG TLV = null
2nd line: Seq Id = 1, TTL = 63, RX Flag = 1, Terminal MEP = No,
Egress ID = 00-05-00-03-85-00-28-C6, Next Egress ID = 00-03-00-03-85-01-5D-CA, Relay
= MIP Forward DB,
CHS ID Type = ENTPHNAME, CHS ID = ML648-64, Mang. Addr = 10.1.6.7 (IPV4),
Ingress = Ok, Ingress MAC = 00-03-85-01-5D-CA, Ingress Port ID = ETH-4 (LOCAL),
Egress = Ok, Egress MAC = 00-03-85-01-5D-CA, Egress Port ID = ETH-2 (LOCAL),
ORG TLV = null
3rd line: Seq Id = 1, TTL = 62, RX Flag = 1, Terminal MEP = No,
Egress ID = 00-03-00-03-85-01-5D-CA, Next Egress ID = 00-09-00-03-85-01-5D-B6, Relay
= MIP Forward DB,
CHS ID Type = ENTPHNAME, CHS ID = ML648-CO, Mang. Addr = 10.1.6.15 (IPV4),
Ingress = Ok, Ingress MAC = 00-03-85-01-5D-B6, Ingress Port ID = ETH-2 (LOCAL),
Egress = Ok, Egress MAC = 00-03-85-01-5D-B6, Egress Port ID = HSL-1 (LOCAL),
ORG TLV = null
Explanation:
In this fragment CFM Link Trace Request passed through NE with TID="Z0525G40008",
then through NE with TID="ML648-64" and then through NE with TID="ML648-CO".
It is clear that this is a "chain" connectivity (and not "star"):
The Next Egress ID=00-05-00-03-85-00-28-C6 of 1st response (first line) is equal to Egress
ID=00-05-00-03-85-00-28-C6 from 2nd response (2nd line) and Next Egress ID=00-03-00-
03-85-01-5D-CA from 2nd response is equal to Egress ID=00-03-00-03-85-01-5D-CA from
3rd response (3rd).
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