Voice over IP Cisco - Trying to troubleshoot switch

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Author Trying to troubleshoot switch
Voll, Scott

2007-04-27, 7:11 pm

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


Steve G

2007-04-27, 7:11 pm

Do the phones ever register? or just continuously reboot.

In your config I don't see the VLANs referenced in your access and voice
vlan port config. can you post a sho interface trunk?


On 4/27/07, Voll, Scott <Scott.Voll@wesd.org> wrote:
>
> 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 ąPC. 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
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>


Voll, Scott

2007-04-27, 7:11 pm

Yes..... It's just they are un-registering sporadically even during
calls.



This is just a layer two switch so everything goes over the Gig Do1q
trunk.



I'm going to replace the switch and see if that fixes it.



Scott



________________________________

From: Steve G [mailto:smgustafson@gmail.com]
Sent: Friday, April 27, 2007 1:53 PM
To: Voll, Scott
Cc: cisco-voip@puck-nether.net
Subject: Re: [cisco-voip] Trying to troubleshoot switch



Do the phones ever register? or just continuously reboot.



In your config I don't see the VLANs referenced in your access and voice
vlan port config. can you post a sho interface trunk?



On 4/27/07, Voll, Scott <Scott.Voll@wesd.org> wrote:

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 <http://10.200.6.4/> 255.255.255.0
<http://255.255.255.0/>

!

ip classless

end


________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip




Kris Seraphine

2007-04-27, 7:11 pm

Do you have multicast enabled for any of your music on hold sources? If so,
this could be causing the high pps rate on your link. If you don't have a
multicast router on the subnet (or if you have igmp snooping disabled) the
moh will be sent to all ports at 50 pps.

On 4/27/07, Voll, Scott <Scott.Voll@wesd.org> wrote:
>
> 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 ąPC. 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
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>



--
kris seraphine

Matthias Schaerer

2007-04-28, 1:11 pm

Scott,

Might be a broadcast storm, so finding the source of it would solve the
problem. I'd add storm-control commands to the user ports in order to see
if any of the devices sends large amounts of broadcast (maybe a loop of
some sort)

storm-control broadcast level 5.00 action shutdown

The command would shut down any port that sends more than 5 percent of
broadcast which is very high on a 100Mb interface. So you might find the
source. The other idea about changing the switch is also a good idea.

HTH
mat
-----------------------------------------------------------------------------------
Matthias Schaerer
Network Engineer, Instructor
Mob: +41 79 419 4557

http://www.anyweb.ch - All you want to know about taking care of networks
is here.
http://www.anyweb-osys.ch - All you want to know about networking training
is here.
(Don't be afraid to ask.)

In case of trouble with resending emails to me
mailto:matthias.schaerer@anyweb.ch




"Voll, Scott" <Scott.Voll@wesd.org>
Sent by: cisco-voip-bounces@puck.nether.net
27.04.2007 21:47


To: "cisco-voip@puck-nether.net" <cisco-voip@puck.nether.net>
cc:
Subject: [cisco-voip] Trying to troubleshoot switch




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 ąPC. 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

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

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

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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cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip



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