B-MAC: 12-00-84-ff-ff-ff and I-SID of 16777215 in ISIS

difan — Sun, 09 Jun 2024 19:22:03 GMT

Hi team,

This is partial output of "show isis tlv type 144" detail. What is this B-MAC: 12-00-84-ff-ff-ff and what is corresponding I-SID of 16777215 for? Will there be any traffic to this MAC address ending with ffffff? I did packet capture and I am not seeing any...

TLV:144 SUB-TLV 3 ISID:
Instance: 0
Metric: 0
B-MAC: 50-00-00-01-00-84
BVID:4052
Number of ISID's:2
1000(Both),2000(Both)


Instance: 0
Metric: 0
B-MAC: 12-00-84-ff-ff-ff
BVID:4052
Number of ISID's:1

16777215(None)

Thanks!

topic B-MAC: 12-00-84-ff-ff-ff and I-SID of 16777215 in ISIS in ExtremeSwitching (VSP/Fabric Engine)

B-MAC: 12-00-84-ff-ff-ff and I-SID of 16777215 in ISIS