08-24-2015 08:34 AM - edited 03-08-2019 01:29 AM
I was told by a TAC engineer in the past that the number of available monitor sessions would be increased from two to something greater than that upon upgrade of IOS to version 15.x. I just upgraded my core 6509 VSS to 15.1(2)SY5 and there still seems to be a limit of two. Was I told wrong, or is this possibly a licensing issue? Thanks.
08-24-2015 08:43 AM
I am running s2t54-advipservicesk9_npe-mz.SPA.150-1.SY5.bin and have 80 available as below
CORE(config)#monitor session ?
<1-80> SPAN session number
egress Egress SPAN sessions replication
Does it only show you 2 when you try to configure that ?
08-24-2015 08:46 AM
As you can see below, I currently have two Spans and one RSpan sessions configured. When I attempt to configure another one, I get "Local Session limit has been exceeded"
pa01-6509-vss-12a#sh monitor
Session 1
---------
Type : Local Session
Source VLANs :
Both : 200-201,205-206
Destination Ports : Gi1/7/46
Egress SPAN Replication State:
Operational mode : Centralized
Configured mode : Centralized (default)
Session 5
---------
Type : Local Session
Source Ports :
Both : Gi1/3/11,Gi1/3/15,Gi2/3/15
Destination Ports : Gi1/7/17
Egress SPAN Replication State:
Operational mode : Centralized
Configured mode : Centralized (default)
Session 20
----------
Type : Remote Destination Session
Source RSPAN VLAN : 113
Destination Ports : Gi1/7/40
pa01-6509-vss-12a#conf t
Enter configuration commands, one per line. End with CNTL/Z.
pa01-6509-vss-12a(config)#monitor sess
pa01-6509-vss-12a(config)#monitor session 2 ?
destination SPAN destination interface or VLAN
filter SPAN filter VLAN
source SPAN source interface, VLAN
type Type of monitor session
pa01-6509-vss-12a(config)#monitor session 2 source ?
interface SPAN source interface
remote SPAN source Remote
switch Switch number of IDS module
vlan SPAN source VLAN
pa01-6509-vss-12a(config)#monitor session 2 source int g1/3/1 ?
, Specify another range of interfaces
- Specify a range of interfaces
both Monitor received and transmitted traffic
rx Monitor received traffic only
tx Monitor transmitted traffic only
<cr>
pa01-6509-vss-12a(config)#monitor session 2 source int g1/3/1
% Local Session limit has been exceeded
pa01-6509-vss-12a(config)#
08-24-2015 08:53 AM
Theres a restriction even on 15 , that's just 80 sessions but local span only 2 as well , as you can see rspan and erspan make up the rest
08-24-2015 08:56 AM
Thanks-been looking for that graphic. Appreciate your time.
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