Unsolved
This post is more than 5 years old
1 Message
0
3684
What is t he difference between Area ID and Port ID in FC ID?
Hi, All!
FC ID is forming from following components - Domain ID, Area ID, Port ID.
But i can't find any information about difference between Area ID and Port ID.
Can anyone explain?
Anonymous User
457 Posts
1
April 18th, 2014 07:00
The FCID is a 24 bit (3 byte) field used to route frames through a FC network. Let’s walk through each byte of the FCID….
1st byte – Domain ID. The Domain ID is given to each FC switch in a fabric and must be unique for each switch.
2nd byte – Area ID. The Area ID is very similar to the 3rd byte. In fact, in Cisco documentation, you’ll find it called the exact same thing as the 3rd byte. The Area ID is used to identify an N type port that is connected to a switch.
3rd byte – Port ID. The Port ID is used to identify a single FC object on the FC fabric.
An Area ID is used to identify groups of ports within a domain and are also used to uniquely identify fabric-attached arbitrated loops. Each fabric-attached loop receives a unique Area ID
Regards,
Suman Pinnamaneni