Cisco 2960 WS-C2960-48TT-L

WS-C2960-48TT-L Cisco 2960 Series switch. Writing down remarks, findings about under the hood components.

History

Cisco 2960 Series switch Cisco 2960

Series was released : 18.09.2005 End of sales date : 31.10.2014 End of support date: 31.10.2019

Product lifecycle from the release to the last support date is 14years.

Product description

WS-C2960-48TT-L : 48 10/100BASE-TX Ethernet ports and 2 10/100/1000BASE-T copper uplink ports (no SFP module slot)

Model	Motherboard assembly nr	Motherboard revision nr	Model revision nr	Serial nr	System serial nr
WS-C2960-48TT-L	73-10391-05	A0	E0	F0C130333V2	FOC1315Y71V
WS-C2960-48TT-L	73-10391-05	A0	E0	F0C130333V2	FOC1303V29T
WS-C2960-48TT-L	73-10391-04	B0	E0	F0C13160EGJ	FOC1151W0G8

Differences

FOC1303V29T model :

Uplink copper port transcievers
Serial RJ45 line driver/receiver
ASIC CPU SRAM
Clock buffers
RAM

Baseline for the component descriptio is the 05-A0 model. All differences are listed explicitely after the baseline model. If there is no difference specified, components are the same.

The 73-10391-04 B0 E0 model( F0C13160EGJ)

Flash

Software

Boot details

File "flash:c2960-lanbasek9-mz.122-46.SE/c2960-lanbasek9-mz.122-46.SE.bin" uncompressed and installed, entry point: 0x3000
executing...

Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(46)SE, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 21-Aug-08 15:59 by nachen
Image text-base: 0x00003000, data-base: 0x01200000

Have you ever wondered who is nachen ? Deployment manager, last commiter, first standby dude ?

Initializing flashfs...

flashfs[1]: 533 files, 19 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 32514048
flashfs[1]: Bytes used: 10655744
flashfs[1]: Bytes available: 21858304
flashfs[1]: flashfs fsck took 1 seconds.
flashfs[1]: Initialization complete....done Initializing flashfs.

cisco WS-C2960-48TT-L (PowerPC405) processor (revision E0) with 61440K/4088K bytes of memory.
Processor board ID FOC1315Y71V
Last reset from power-on
1 Virtual Ethernet interface
48 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:25:46:4D:97:80
Motherboard assembly number     : 73-10391-05
Power supply part number        : 341-0097-02
Motherboard serial number       : FOC13160EGJ
Power supply serial number      : DCA131481UM
Model revision number           : E0
Motherboard revision number     : A0
Model number                    : WS-C2960-48TT-L
System serial number            : FOC1315Y71V
Top Assembly Part Number        : 800-27222-04
Top Assembly Revision Number    : B0
Version ID                      : V04
CLEI Code Number                : COM3H00BRC
Hardware Board Revision Number  : 0x02

Switch Ports Model              SW Version            SW Image                 
------ ----- -----              ----------            ----------               
*    1 50    WS-C2960-48TT-L    12.2(46)SE            C2960-LANBASEK9-M

Identical Motherboard/model series

Continuosly confusing differences within same motherboard series :

800-26688-01-A0
700-20563-01 REV.A1
FOXCONN01/13/2009

File "flash:/c2960-lanbasek9-mz.122-52.SE/c2960-lanbasek9-mz.122-52.SE.bin" uncompressed and installed, entry point: 0x3000
executing...

Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(52)SE, RELEASE SOFTWARE (fc3)
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 25-Sep-09 08:49 by sasyamal
Image text-base: 0x00003000, data-base: 0x01500000

Initializing flashfs...

fsck: Disable shadow buffering due to heap fragmentation.
flashfs[1]: 538 files, 19 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 32514048
flashfs[1]: Bytes used: 11966976
flashfs[1]: Bytes available: 20547072
flashfs[1]: flashfs fsck took 5 seconds.
flashfs[1]: Initialization complete....done Initializing flashfs.


cisco WS-C2960-48TT-L (PowerPC405) processor (revision E0) with 65536K bytes of memory.
Processor board ID FOC1303V29T
Last reset from power-on
1 Virtual Ethernet interface
48 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:24:98:79:14:00
Motherboard assembly number     : 73-10391-05
Power supply part number        : 341-0097-02
Motherboard serial number       : FOC130333V2
Power supply serial number      : DCA130281B5
Model revision number           : E0
Motherboard revision number     : A0
Model number                    : WS-C2960-48TT-L
System serial number            : FOC1303V29T
Top Assembly Part Number        : 800-27222-04
Top Assembly Revision Number    : A0
Version ID                      : V04
CLEI Code Number                : COM3H00BRC
Hardware Board Revision Number  : 0x02


Switch Ports Model              SW Version            SW Image                 
------ ----- -----              ----------            ----------               
*    1 50    WS-C2960-48TT-L    12.2(52)SE            C2960-LANBASEK9-M

64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:1E:BD:F2:EE:80
Motherboard assembly number     : 73-10391-04
Power supply part number        : 341-0097-02
Motherboard serial number       : FOC11503GAM
Power supply serial number      : AZS11470046
Model revision number           : D0
Motherboard revision number     : B0
Model number                    : WS-C2960-48TT-L
System serial number            : FOC1151W0G8
Top Assembly Part Number        : 800-27222-03
Top Assembly Revision Number    : B0
Version ID                      : V03
CLEI Code Number                : COM3H00BRB
Hardware Board Revision Number  : 0x02


Switch Ports Model              SW Version            SW Image                 
------ ----- -----              ----------            ----------               
*    1 50    WS-C2960-48TT-L    12.2(46)SE            C2960-LANBASEK9-M

Forensic details

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   DATAGROUP Business Solutions GmbH



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Please enter your username and password!

show configuration

username klippel privilege 15 secret 5 $1$7CXP$eBgfs9BYdILD36lKiV3pQ.
username netzadmin privilege 15 secret 5 $1$1E0s$GjYEmaB2DquzvjnDFquqZ/

username narkumar privilege 15 secret 5 $1$IU.M$7k17Tknn9ZHGAyKGonZcv1
username admin privilege 15 secret 5 $1$9UAp$pHzv.fZTOsN12FUrMcm3W.
username trageing privilege 15 secret 5 $1$1Tz8$pMWbwXR3xlzKM5gXCAHcr0
username cattools privilege 15 secret 5 $1$gWc2$19qBsgUTLvLqfDz1Tt80Y1
username kempnada privilege 15 secret 5 $1$.FTh$bGz4/uUP2ZThNqo9zhjmM.

77   BRO-Guest-NUE                    active    
220  B1-K/M-Printers-NUE              active    
651  B1-Clients-NUE                   active    
658  B1-WLAN-NUE                      active    
900  COLT-MPLS-WAN                    active 
1002 fddi-default                     act/unsup 
1003 trcrf-default                    act/unsup 
1004 fddinet-default                  act/unsup 
1005 trbrf-default                    act/unsup

Features

Auto-negotiation
Dynamic Trunking Protocol (DTP)
Port Aggregation Protocol (PAgP)
Link Aggregation Control Protocol (LCAP)
Automatic media-dependent interface crossover (MDIX)
Unidirectional Link Detection Protocol (UDLD)
Dynamic Host Configuration Protocol (DHCP)
Switching Database Manager (SDM)
Local Proxy Address Resolution Protocol (ARP)
Internet Group Management Protocol (IGMP)
Per-port broadcast, multicast, and unicast storm control
Voice VLAN
Cisco VLAN Trunking Protocol (VTP)
Switch Port Analyzer (SPAN)
Remote Monitoring (RMON)
Trivial File Transfer Protocol (TFTP)
Network Timing Protocol (NTP)
Cisco Emergency Responder (CER)

Board

Top view on the board.

P/N : 73-10391-05 AO PID VID identifier : WS-C2960-48TT-L V03

Additional information :

SN : F0C115W0G8
IOS VER : 12.2(35)SE5
MAC 00:1E:BD:F2:EE:80
CLEI Code COM3H00BRB

CLEI code is unique code assigned by Telcordia Technologies (URN - Uniformed Resource Name, RFC 4152) based on the request of hardware producer

The model was produced in 03/26/2009. Reference : 700-20563-01 REV. A1

Another reference number on the metal chasis is : 800-2669-01 A0. A0 seems to be submodel type.

Same A0 reference is on the P/N number from the board.

There are multiple variants of the board for the WS-C2960-48TT-L model.

P/N : 73-10391-04 B0

Core model is part of 73-10391 range, adjustments are described after the “-” sign as 04 B0 or 05 A0 . Interesting how you are able to adapt the hadrware setup within the same model range during the product lifetime period 31.10.2014 - 31.10.2019

Components

Power supply unit

73-10391-05 AO model power supply unit is Delta DPSN 60CP

Serial : DCA131481UM, Model nr: 341-0097-02, REV: A0

Schema description based on the TUV test result

Model 3 power supply unit is different

Can’t find any schema description

AZS11470046
341-0097-02 REV:A0
03060-0448
03040-0448

Just based on look & feel Delta powered up between 2007 and 2009

CPU

Yeti-2

Part number : 08-0718-01, YETI-2, 98P1561 GE14, 0902D51DEP

As there is not much available by the part number search, only what I found is based on Cisco boot log : (PowerPC405) processor (revision E0) PowerPC 405 wiki link describes the series

Flash

IOS Flash

Spansion

Product identifiers

S29GL256N11TAI01
907FV146 H

Details

2006S29GL-N MirrorBit™ Flash Family
256 Mbit
3.0 Volt page mode flashing memory
90 ns access time
Low power consumption
25 mA typical active read current
50 mA typical erase/program current
1 μA typical standby mode current
Two hundred fifty-six 64 Kword (128 Kbyte) sectors
8-word/16-byte page read buffer
25 ns page read times
16-word/32-byte write buffer reduces overall programming time for multiple-word updates

Software features

Program Suspend and Resume: read other sectors before programming operation is completed
Erase Suspend and Resume: read/program other sectors before an erase operation is completed—
Data# polling and toggle bits provide status
Unlock Bypass Program command reduces overall multiple-word programming time
CFI (Common Flash Interface) compliant: allows host system to identify and accommodate multiple flash devices

Hardware features

Advanced Sector Protection
WP#/ACC input accelerates programming time (when high voltage is applied) for greater throughput during system production. Protects first or last sector regardless of sector protection settings
Hardware reset input (RESET#) resets device
Ready/Busy# output (RY/BY#) detects program or erase cycle completion

Micron

Compared to other two models (73-10391-05 | A0 | E0 ) Cisco decided to use 2 * 128Mbit (1682) instead of 1 * 256 Mbit (Spansion model). The production date is 2007 which is two years earlier and it was most likely cheaper to have 1 * 256Mbit flash instead of 2 * 128Mb

Product identifiers

WS-C2960-48TT-L | 73-10391-04 | B0 | E0 | F0C13160EGJ|

MT28F128

Data sheet

Micron page throws 404

Board

RAM

Samsung 913

DDR SDRAM for the Yeti-2 CPU

32M * 16 RAM

1/2 available

K4H511638D-UCB3
H5116 2P8712CBC

Data sheet

Chip on the board

Micron

Board view

46V32MI6

Datasheet

Functional architecture

Serial RJ45 line driver/receiver

MAX3232

Serial port connectivity is handled via Texas Instruments Max3232 Line Driver/Receiver. Line Driver and Receiver Integrated Circuits Line driver and receiver integrated circuits are used to transmit digital information from one subsystem or system to another. A line driver is used at the transmitting end and a matching line receivers required at the receiving end.

Details from the datasheet

Pin mapping

Motherboard with serial nr : FOC130333V2, same model and revision nr!? uses

ADM3202ARN

Board :

10/100Base-T ports

All 48 ports are connected via 6x Broadcom

BCM5248UA4KQM
HG0906 P14
909992 1A

Data sheet

Uplink copper port 1000Base-T

Elec & Eltec, Honkong

824-M0060R
0843 CN2

Board :

Motherboard with serial nr : FOC130333V2, same model and revision nr!? uses

Pulse

H5007NL
0852J-China
1000BASE-T magnetic module
Designed to support 1:1 turns radio transceiver

Data sheet :

Gigabit transcievers

Next to the upling copper ports we can find two gigabit transcievers from Marvell

Alaska 88E1112

Board view

They are located next to Elec&Eltec 1000 Base-T single port magnetic modules

Fan

Nidec Gamma 30

Model A34123-57
PBT-GF30-FRK

Data sheet

ASIC

There is not much I can find about ASIC model, as it’s under the heat sink. Don’t know how to safely remove it without destroying the ASIC.

The ASIC is basically a CPU that is not a general purpose CPU but is a CPU for making switching decisions very quickly. It can’t be used for much else. This is similar to a high-end graphics card that has a special CPU for graphics processing that wouldn’t be good for general applications. Source

ASIC CPU SRAM

Looking at the board, next to each ASIC, there is a SRAM

128K x 36, 256K x 18

Renesas

IDT 71V3558X
S133PF
X0912J

Board view

Motherboard with serial nr : FOC130333V2, same model and revision nr!? uses

Samsung 849

K7N401809B

Datasheet

ASIC CAM

TCAM (ternary content-addressable memory) is a specialized type of high-speed memory that searches its entire contents in a single clock cycle. Generally speaking, CAM is often described as the opposite of random access memory (RAM). Source

Renesas TCAM part id’s

R8A20120BG
8489SB00

Switch#show platform tcam usage

=============================================================================
                                  TCAM Table       
 TCAM / SSRAM Table            TCAM            SSRAM
                                Start   Size X    Start   Size Y     
=============================================================================
 Local Forwarding Table:            0   2200 1        0   2200   4
 Local Learning Table:              0   2200 1     8800   2200   2
 Secondary Forwarding Table:     2080    200 1     CC00    200   8
 QoS Table:                      2280    C00 1     F700    C00   4
 ACL Table:                      2E80    C00 1    12700    C00   4
 IPV6 Secondary Forwarding Tabl  3E40     C0 2     DC00     60   8
 IPV6 Classification Table:      3F00     80 2    15700     40   4
 IPV6 ACL Table:                 3F80     70 2    15800     38   4
 Station Table:                     0      0 0    15900   2200   4
 MAC Address Table:                 0      0 0    1E100      2   8
 Multicast Expansion Table:         0      0 0    1E180    122  40
 VLAN List Table:                   0      0 0    22A00     40  10
 Equal Cost Route Table:            0      0 0    22A00      0  20

 X - Number of 144-bit TCAM entries per descriptor
 Y - Number of bytes per descriptor
=============================================================================
SDM template realignment scheme-2 in effect
Dummy SFD start: 0xE700, entries 0x200, size 8

Switch#show platform tcam utilization

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

 Unicast mac addresses:                       1040/8320         12/24    
 IPv4 IGMP groups + multicast routes:           48/384           6/26    
 IPv4 unicast routes:                            0/0             0/0     
 IPv4 policy based routing aces:                 0/0             0/0     
 IPv4 qos aces:                                384/384         260/260   
 IPv4 security aces:                           384/384          27/27    

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

Model 3 with system serial nr. FOC1151W0G8 has a different TCAM implementation