I'm having a very odd issue with my c3750 where by I think I'm hitting the static route limits. If I add ANYMORE routes to the switch (in this case a block of 16 ips), it immediately stops taking traffic (we have HRSP configured) and all my secondary switches tied through it immediately fail over the redundant c3750 switch.
As soon as the route is removed, everything goes back to normal.
Here is some info that hopefully helps:
#sh version
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(40)SE, RELEASE SOFTWARE (fc3)
cisco WS-C3750E-24TD (PowerPC405) processor (revision E0) with 245760K/16376K bytes of memory.
Last reset from power-on
22 Virtual Ethernet interfaces
1 FastEthernet interface
28 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
512K bytes of flash-simulated non-volatile configuration memory.
#show sdm prefer
The current template is "desktop default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 6K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 8K
number of directly-connected IPv4 hosts: 6K
number of indirect IPv4 routes: 2K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
#show sdm prefer routing
"desktop routing" template:
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 3K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 11K
number of directly-connected IPv4 hosts: 3K
number of indirect IPv4 routes: 8K
number of IPv4 policy based routing aces: 0.5K
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
#show platform tcam utilization
CAM Utilization for ASIC# 0 Max Used
Masks/Values Masks/values
Unicast mac addresses: 6364/6364 939/939
IPv4 IGMP groups + multicast routes: 1120/1120 1/1
IPv4 unicast directly-connected routes: 6144/6144 1774/1774
IPv4 unicast indirectly-connected routes: 2048/2048 2047/2047
IPv4 policy based routing aces: 452/452 12/12
IPv4 qos aces: 512/512 21/21
IPv4 security aces: 964/964 26/26
#show memory
Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 3176570 199875216 45637544 154237672 152256300 146522196
I/O F000000 16769024 10544324 6224700 6013132 6126200
Driver te 1C00000 4194304 44 4194260 4194260 4194260
#sh ip route summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 62 3968 9424
static 15 1727 111488 264784
internal 53 62116
Total 68 1789 115456 336324
Any information would be GREATLY appreciated.
Thank you =)