Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

Monitoring destination port - port buffer overflow risk?

Hi All,

On a 6506-E I am using local span (the simplest version).

There is a possibility that 2Gb/s is duplicated to a 1Gb/s monitor destination port. Of course 50% of the traffic will drop, due to lack of bandwidth on the monitor destination port.

Environment(simplified):
 Cisco 6506-E
 24 x 1Gb/s SFP ports (WS-X6824-SFP)
 IOS release 15.1(1)SY1

The case is, dropping packets is no issue on the monitor destination port. However, on the same module, a WS-X6824-SFP (24 SFP port) is also critical production traffic active.

This results in two questions:
-Are the output buffers on the WS-X6824-SFP, shared among all 24 ports?
-If so, can the oversubscribed monitor destination port use the largest portion of this shared buffer on the interface module?

Thanks in advance for any input on this.

Kind regards,

Joris

Everyone's tags (1)
90
Views
0
Helpful
0
Replies
CreatePlease to create content