[cisco-voip] Trying to troubleshoot switch

[Voll, Scott]

I'm really going to show how dumb I am but I'm too close to the problem.

 

I have a 3560 48 port 10/100 PoE switch that connects about 6 phone back
to an other 3560 via SX.

 

The switch / phones I'm having problems with keep loosing connections
and therefore the phones keep reseting.

 

I found the one switch with err-disable do to flapping.  So I replaced
the SX and put it in a different Gig sfp slot.

 

Still having the issue. 

 

 Look to be a broadcast storm by the link lights.  So I unplugged ports
until the lights went back to normal.  Follow the cable back to a phone
--> PC.  Plug it back in and the lights still looked fine.

 

telnet into the switch and I'm seeing the gig link Broadcast and
multicast increment at a rate of `100 per sec.  NO other switch ports
are incrementing anywhere close to this.

 

Is this a bad switch?  Do I have a bad run of fiber?  What can I do to
trouble shoot more?

 

Scott

 

PS.  Here is the conifg:

 

version 12.2

no service pad

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname GeorgeFox

!

enable secret 5 <removed>

!

no aaa new-model

clock timezone PST -8

clock summer-time PDT recurring

ip subnet-zero

!

!

mls qos map cos-dscp 0 8 16 26 32 46 48 56

mls qos srr-queue input bandwidth 90 10

mls qos srr-queue input threshold 1 8 16

mls qos srr-queue input threshold 2 34 66

mls qos srr-queue input buffers 67 33 

mls qos srr-queue input cos-map queue 1 threshold 2  1

mls qos srr-queue input cos-map queue 1 threshold 3  0

mls qos srr-queue input cos-map queue 2 threshold 1  2

mls qos srr-queue input cos-map queue 2 threshold 2  4 6 7

mls qos srr-queue input cos-map queue 2 threshold 3  3 5

mls qos srr-queue input dscp-map queue 1 threshold 2  9 10 11 12 13 14
15

mls qos srr-queue input dscp-map queue 1 threshold 3  0 1 2 3 4 5 6 7

mls qos srr-queue input dscp-map queue 1 threshold 3  32

mls qos srr-queue input dscp-map queue 2 threshold 1  16 17 18 19 20 21
22 23

mls qos srr-queue input dscp-map queue 2 threshold 2  33 34 35 36 37 38
39 48

mls qos srr-queue input dscp-map queue 2 threshold 2  49 50 51 52 53 54
55 56

mls qos srr-queue input dscp-map queue 2 threshold 2  57 58 59 60 61 62
63

mls qos srr-queue input dscp-map queue 2 threshold 3  24 25 26 27 28 29
30 31

mls qos srr-queue input dscp-map queue 2 threshold 3  40 41 42 43 44 45
46 47

mls qos srr-queue output cos-map queue 1 threshold 3  5

mls qos srr-queue output cos-map queue 2 threshold 3  3 6 7

mls qos srr-queue output cos-map queue 3 threshold 3  2 4

mls qos srr-queue output cos-map queue 4 threshold 2  1

mls qos srr-queue output cos-map queue 4 threshold 3  0

mls qos srr-queue output dscp-map queue 1 threshold 3  40 41 42 43 44 45
46 47

mls qos srr-queue output dscp-map queue 2 threshold 3  24 25 26 27 28 29
30 31

mls qos srr-queue output dscp-map queue 2 threshold 3  48 49 50 51 52 53
54 55

mls qos srr-queue output dscp-map queue 2 threshold 3  56 57 58 59 60 61
62 63

mls qos srr-queue output dscp-map queue 3 threshold 3  16 17 18 19 20 21
22 23

mls qos srr-queue output dscp-map queue 3 threshold 3  32 33 34 35 36 37
38 39

mls qos srr-queue output dscp-map queue 4 threshold 1  8

mls qos srr-queue output dscp-map queue 4 threshold 2  9 10 11 12 13 14
15

mls qos srr-queue output dscp-map queue 4 threshold 3  0 1 2 3 4 5 6 7

mls qos queue-set output 1 threshold 1 138 138 92 138

mls qos queue-set output 1 threshold 2 138 138 92 400

mls qos queue-set output 1 threshold 3 36 77 100 318

mls qos queue-set output 1 threshold 4 20 50 67 400

mls qos queue-set output 2 threshold 1 149 149 100 149

mls qos queue-set output 2 threshold 2 118 118 100 235

mls qos queue-set output 2 threshold 3 41 68 100 272

mls qos queue-set output 2 threshold 4 42 72 100 242

mls qos queue-set output 1 buffers 10 10 26 54

mls qos queue-set output 2 buffers 16 6 17 61

mls qos

!

!

!

!

no file verify auto

spanning-tree mode pvst

spanning-tree extend system-id

!

vlan internal allocation policy ascending

!

interface FastEthernet0/1

 switchport access vlan 60

 switchport voice vlan 160

 srr-queue bandwidth share 10 10 60 20

 srr-queue bandwidth shape  10  0  0  0 

 priority-queue out 

 mls qos trust device cisco-phone

 mls qos trust cos

 auto qos voip cisco-phone 

 spanning-tree portfast

!

interface FastEthernet0/2 - 48

 switchport access vlan 90

 switchport voice vlan 160

 srr-queue bandwidth share 10 10 60 20

 srr-queue bandwidth shape  10  0  0  0 

 priority-queue out 

 mls qos trust device cisco-phone

 mls qos trust cos

 auto qos voip cisco-phone 

 spanning-tree portfast

!

!

!

interface GigabitEthernet0/1 - 4

 switchport trunk encapsulation dot1q

 switchport mode trunk

 srr-queue bandwidth share 10 10 60 20

 srr-queue bandwidth shape  10  0  0  0 

 queue-set 2

 priority-queue out 

 mls qos trust cos

 auto qos voip trust 

!

interface Vlan1

 no ip address

 shutdown

!

interface Vlan60

 ip address 10.200.6.4 255.255.255.0

!

ip classless

end

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