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TDR on 3750


Any idea why this TDR wont run on fa ports?


#test cable-diagnostics tdr interface ?
GigabitEthernet GigabitEthernet IEEE 802.3z


No option for fa ports.

POP29-DIAMSANDS_BLD_10#sh ver | inc image
System image file is "flash:/c3750-ipservicesk9-mz.122-55.SE9.bin"

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C3750-48TS 12.2(55)SE9 C3750-IPSERVICESK9-M




POP29-DIAMSANDS_BLD_10#sh inventory
NAME: "1", DESCR: "WS-C3750-48TS"
PID: WS-C3750-48TS-S , VID: V05 , SN: CAT1039ZH3L

NAME: "GigabitEthernet1/0/1", DESCR: "1000BaseBX10-U SFP"
PID: Unspecified , VID: , SN: 1311163107

NAME: "GigabitEthernet1/0/2", DESCR: "1000BaseBX10-D SFP"
PID: Unspecified , VID: , SN: 1311165517

NAME: "GigabitEthernet1/0/3", DESCR: "1000BaseBX10-D SFP"
PID: Unspecified , VID: , SN: 1311165516

NAME: "GigabitEthernet1/0/4", DESCR: "1000BaseBX10-U SFP"
PID: Unspecified , VID: , SN: 1311163106


sh int cap : FastEthernet1/0/17
Model: WS-C3750-48TS
Type: 10/100BaseTX
Speed: 10,100,auto
Duplex: half,full,auto
Trunk encap. type: 802.1Q,ISL
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),
tx-(4q3t) (3t: Two configurable values and one fixed.)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: no
SPAN: source/destination
PortSecure: yes
Dot1x: yes


# sh int fa1/0/17
FastEthernet1/0/17 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.56dc.1f13 (bia 0019.56dc.1f13)
Description: unit-1107
MTU 1546 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 11w5d, output 00:00:01, output hang never
Last clearing of "show interface" counters 01:04:03
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1123
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 4000 bits/sec, 5 packets/sec
5 minute output rate 13000 bits/sec, 4 packets/sec
43291 packets input, 8819123 bytes, 0 no buffer
Received 12 broadcasts (5 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 5 multicast, 0 pause input
0 input packets with dribble condition detected
41513 packets output, 29184901 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

Thank you.

1 Comment
Leo L
VIP Community Legend

@sandsdenver wrote:

Any idea why this TDR wont run on fa ports?

When the "plain" 3650/3750 came out, the hardware was not included in the design. 

Only the GigabitEthernet models supports TDR.