I originally had 2 x 3650 switches stacked, unknowing that this limits the routing resources from 24k per switch to just 24k for the whole stack. So, as advised by Cisco I removed the stack so I can utilize full resources. Now, I have the two switches trunked, not stacked.
The issue: it appears that the primary switch is still doing all the routing and my TCAM resources are still limited to 24k total, not 24k per switch. Each switch should technically behave like an L3 switch and have their full resources allowed, but they don’t. How can I rectify this problem?
Technically: switch #1 has about 10k IPv4 routed on those VLANs ported and switch #2 about 13k on the VLANs ported on that switch. Below shows otherwise.
First switch in trunk:
Cisco3650#show platform tcam utilization asic all
CAM Utilization for ASIC# 0
Table Max Values Used Values
--------------------------------------------------------------------------------
Unicast MAC addresses 32768/512 189/22
Directly or indirectly connected routes 16384/7168 16271/7168
L2 Multicast groups 4096/512 0/7
L3 Multicast groups 4096/512 0/9
QoS Access Control Entries 3072 52
Security Access Control Entries 1536 190
Netflow ACEs 768 15
Input Microflow policer ACEs 256 7
Output Microflow policer ACEs 256 7
Flow SPAN ACEs 512 13
Control Plane Entries 512 240
Policy Based Routing ACEs 1024 9
Tunnels 256 9
Input Security Associations 256 4
Output Security Associations and Policies 256 9
SGT_DGT 4096/512 0/0
CLIENT_LE 4096/64 0/0
INPUT_GROUP_LE 6144 0
OUTPUT_GROUP_LE 6144 0
Second switch in trunk:
CAM Utilization for ASIC# 0
Table Max Values Used Values
--------------------------------------------------------------------------------
Unicast MAC addresses 32768/512 165/22
Directly or indirectly connected routes 16384/7168 4229/145
L2 Multicast groups 4096/512 0/7
L3 Multicast groups 4096/512 0/9
QoS Access Control Entries 3072 52
Security Access Control Entries 1536 190
Netflow ACEs 768 15
Input Microflow policer ACEs 256 7
Output Microflow policer ACEs 256 7
Flow SPAN ACEs 512 13
Control Plane Entries 512 240
Policy Based Routing ACEs 1024 9
Tunnels 256 9
Input Security Associations 256 4
Output Security Associations and Policies 256 9
SGT_DGT 4096/512 0/0
CLIENT_LE 4096/64 0/0
INPUT_GROUP_LE 6144 0
OUTPUT_GROUP_LE 6144 0
This is not right. Each switch should be allowed it’s full 24k routing policy.