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3750 Switch Stack - TCAM Error

incatiger2
Level 1
Level 1

hey guys,

has anyone running a 3750 switch stack run into "Found error in HFTM TCAM Space and not able to recover the error" problem? Found a recommendation to "pull the power from the switch" somewhere in this forum but it was referring to a standalone switch, not a stack.  Wondering if the same solution applies to a stack member.

TIA.

3 Replies 3

balaji.bandi
Hall of Fame
Hall of Fame

what IOS Code running : what more logs you see ?

 

psot below outcome :

 

 show platform tcam utilization

 show platform tcam usage

 show platform tcam log-results

BB

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incatiger2
Level 1
Level 1

Here you BB.

 

- sh ver

version 12.2(55)SE6

- Sh plat tcam util:

sh platform tcam util

CAM Utilization for ASIC# 0 Max Used
Masks/Values Masks/values

Unicast mac addresses: 784/6272 15/49
IPv4 IGMP groups + multicast routes: 152/1216 6/26
IPv4 unicast directly-connected routes: 784/6272 15/49
IPv4 unicast indirectly-connected routes: 272/2176 8/44
IPv4 policy based routing aces: 0/0 0/0
IPv4 qos aces: 768/768 260/260
IPv4 security aces: 1024/1024 39/39

Note: Allocation of TCAM entries per feature uses
a complex algorithm. The above information is meant
to provide an abstract view of the current TCAM utilization

- sh platform tcam usage

=============================================================================
TCAM Table
TCAM / SSRAM Table TCAM SSRAM
Start Size X Start Size Y
=============================================================================
Local Forwarding Table: 0 1D40 1 0 1D40 4
Local Learning Table: 0 1D40 1 7500 1D40 2
Secondary Forwarding Table: 1880 D40 1 AF80 D40 8
QoS Table: 25C0 1800 1 1E700 1800 4
ACL Table: 3DC0 2000 1 24700 2000 4
IPV6 Secondary Forwarding Tabl 7E10 C0 2 1E3C0 60 8
IPV6 Classification Table: 7ED0 80 2 2C720 40 4
IPV6 ACL Table: 7F50 A0 2 2C820 50 4
Station Table: 0 0 0 2C980 1D40 4
MAC Address Table: 0 0 0 33E80 1800 8
Multicast Expansion Table: 0 0 0 3FE80 422 8
VLAN List Table: 0 0 0 43000 400 10
Equal Cost Route Table: 0 0 0 42000 80 20

X - Number of 144-bit TCAM entries per descriptor
Y - Number of bytes per descriptor
=============================================================================
SDM template realignment scheme-1 in effect


- sh platform tcam log-results


================================================================
CAM Log Results
----------------------------------------------------------------
Total Number of PortASICs: 7

ASIC 0
Lookup "Invalid", value 0
TCAM Index 0, TCAM Table Index -1
Cam Log Keys
key-0: 10-00010000-00808200
key-1: 40-00000042-00000000
key-2: 00-01000000-00000808
key-3: 00-00000000-00000000

ASIC 1
Lookup "Invalid", value 0
TCAM Index 0, TCAM Table Index -1
Cam Log Keys
key-0: 00-00090000-00000000
key-1: 02-00000000-01000000
key-2: 00-00000008-00060080
key-3: 00-00000000-00000000

ASIC 2
Lookup "Invalid", value 0
TCAM Index 131071, TCAM Table Index -1
Cam Log Keys
key-0: 02-00000010-00000000
key-1: 02-00000010-00000000
key-2: 00-00000000-00000000
key-3: 00-00000030-00002000

ASIC 3
Lookup "Invalid", value 0
TCAM Index 131071, TCAM Table Index -1
Cam Log Keys
key-0: 00-00040000-00000000
key-1: A3-11930004-E4240000
key-2: 1D-8801ECCD-39800CA9
key-3: 20-01C08000-40040000

ASIC 4
Lookup "Invalid", value 0
TCAM Index 0, TCAM Table Index -1
Cam Log Keys
key-0: 07-F98D9E6C-30590BAC
key-1: D8-F17599A9-FFDF7BCF
key-2: 5F-A7B2923E-76701612
key-3: C8-59CF04D3-27250011

ASIC 5
Lookup "Invalid", value 0
TCAM Index 131071, TCAM Table Index -1
Cam Log Keys
key-0: 00-CE000000-02000041
key-1: 00-E8000000-00000000
key-2: 00-CE000000-02000041
key-3: 00-E8000000-00000000

ASIC 6
Lookup "Invalid", value 0
TCAM Index 131071, TCAM Table Index -1
Cam Log Keys
key-0: 08-02020000-00000000
key-1: 06-00000000-00000000
key-2: 01-00001001-00000040
key-3: 00-00000000-00280000

Notes:
a) key-0 is most recent cam key
b) key-0 contains lsb's and key-3 contains msb's
c) watch for Lookup field in cam key for validating results
d) TCAM Table Index -1 indicates invalid results
===============================================================

marce1000
Hall of Fame
Hall of Fame

 

                 >...Wondering if the same solution applies to a stack member.

 - It will because after all the problem is 'isolated' and or for  that particular stack member only.

 M.



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