Solved: vlan interface configuration

No as I'm assuming this switch is a "layer2" switch meaning the VLAN1 interface is only for management purposes. Is the uplink saturated? or have errors?

dtadmin

ASKER

the uplink to my core switch has no errors and is only 3 to 5% saturated.

dtadmin

ASKER

this switch is a Cisco Catalyst 3750 layer 3 switch

JFrederick29

But is it routing? i.e. is the VLAN1 interface on this switch the clients default gateway or is it the core?

dtadmin

ASKER

their default gateway is the core switch.

JFrederick29

Yeah, so it has nothing to do with it. Do a "show int summary" and see if any interfaces are saturated. What are they communicating with? Are other clients off other switches reporting slowness to the same apps?

dtadmin

ASKER

Institute_3750#sh int summary

*: interface is up
IHQ: pkts in input hold queue IQD: pkts dropped from input queue
OHQ: pkts in output hold queue OQD: pkts dropped from output queue
RXBS: rx rate (bits/sec) RXPS: rx rate (pkts/sec)
TXBS: tx rate (bits/sec) TXPS: tx rate (pkts/sec)
TRTL: throttle count

Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
* Vlan1 0 0 0 0 4000 6 1000 2 0
Vlan2 0 0 0 0 0 0 0 0 0
FastEthernet1/0/1 0 0 0 0 0 0 0 0 0
FastEthernet1/0/2 0 0 0 0 0 0 0 0 0
FastEthernet1/0/3 0 0 0 0 0 0 0 0 0
FastEthernet1/0/4 0 0 0 0 0 0 0 0 0
FastEthernet1/0/5 0 0 0 0 0 0 0 0 0
FastEthernet1/0/6 0 0 0 0 0 0 0 0 0
FastEthernet1/0/7 0 0 0 0 0 0 0 0 0
FastEthernet1/0/8 0 0 0 0 0 0 0 0 0
FastEthernet1/0/9 0 0 0 0 0 0 0 0 0
FastEthernet1/0/10 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/11 0 0 0 0 0 0 0 0 0
FastEthernet1/0/12 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/13 0 0 0 0 0 0 0 0 0
FastEthernet1/0/14 0 0 0 0 0 0 0 0 0
FastEthernet1/0/15 0 0 0 0 0 0 0 0 0
FastEthernet1/0/16 0 0 0 0 0 0 0 0 0
FastEthernet1/0/17 0 0 0 0 0 0 0 0 0
FastEthernet1/0/18 0 0 0 0 0 0 0 0 0
FastEthernet1/0/19 0 0 0 0 0 0 0 0 0
FastEthernet1/0/20 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/21 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/22 0 0 0 0 0 0 0 0 0
FastEthernet1/0/23 0 0 0 0 0 0 0 0 0
FastEthernet1/0/24 0 0 0 0 0 0 0 0 0
FastEthernet1/0/25 0 0 0 0 0 0 0 0 0
FastEthernet1/0/26 0 0 0 0 0 0 0 0 0
FastEthernet1/0/27 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/28 0 0 0 0 184000 0 0 0 0
FastEthernet1/0/29 0 0 0 0 0 0 0 0 0
FastEthernet1/0/30 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/31 0 0 0 0 0 0 0 0 0
FastEthernet1/0/32 0 0 0 0 0 0 0 0 0
FastEthernet1/0/33 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/34 0 0 0 0 0 0 1000 2 0
FastEthernet1/0/35 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/36 0 0 0 0 1000 1 2000 2 0
FastEthernet1/0/37 0 0 0 0 0 0 0 0 0
FastEthernet1/0/38 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/39 0 0 0 0 0 0 0 0 0
FastEthernet1/0/40 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/41 0 0 0 0 5000 1 1000 2 0
FastEthernet1/0/42 0 0 0 0 0 0 0 0 0

Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
FastEthernet1/0/43 0 0 0 0 0 0 0 0 0
FastEthernet1/0/44 0 0 0 0 0 0 0 0 0
FastEthernet1/0/45 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/46 0 0 0 0 0 0 0 0 0
FastEthernet1/0/47 0 0 0 0 0 0 0 0 0
* FastEthernet1/0/48 0 0 0 0 0 0 439000 620 0
* GigabitEthernet1/0/1 0 0 0 0 987000 724 336000 78 0
GigabitEthernet1/0/2 0 0 0 0 0 0 0 0 0
GigabitEthernet1/0/3 0 0 0 0 0 0 0 0 0
GigabitEthernet1/0/4 0 0 0 0 0 0 0 0 0
FastEthernet2/0/1 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/2 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/3 0 0 0 0 0 0 0 0 0
FastEthernet2/0/4 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/5 0 0 0 0 0 1 6000 1 0
FastEthernet2/0/6 0 0 0 0 0 0 0 0 0
FastEthernet2/0/7 0 0 0 0 0 0 0 0 0
FastEthernet2/0/8 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/9 0 0 0 0 3000 1 1000 1 0
* FastEthernet2/0/10 0 0 0 0 0 1 1000 1 0
* FastEthernet2/0/11 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/12 0 0 0 0 0 0 0 0 0
FastEthernet2/0/13 0 0 0 0 0 0 0 0 0
FastEthernet2/0/14 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/15 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/16 0 0 0 0 0 0 0 0 0
FastEthernet2/0/17 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/18 0 0 0 0 1000 0 1000 1 0
* FastEthernet2/0/19 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/20 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/21 0 0 0 0 0 0 88000 1 0
FastEthernet2/0/22 0 0 0 0 0 0 0 0 0
FastEthernet2/0/23 0 0 0 0 0 0 0 0 0
FastEthernet2/0/24 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/25 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/26 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/27 0 0 0 0 3000 1 39000 2 0
FastEthernet2/0/28 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/29 0 0 0 0 0 1 1000 1 0
FastEthernet2/0/30 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/31 0 0 0 0 0 0 1000 1 0
* FastEthernet2/0/32 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/33 0 0 0 0 0 0 0 0 0
FastEthernet2/0/34 0 0 0 0 0 0 0 0 0
FastEthernet2/0/35 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/36 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/37 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/38 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/39 0 0 0 0 0 0 0 0 0
* FastEthernet2/0/40 0 0 0 0 0 0 1000 1 0
FastEthernet2/0/41 0 0 0 0 0 0 0 0 0

Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
* FastEthernet2/0/42 0 0 0 0 1000 1 1000 1 0
FastEthernet2/0/43 0 0 0 0 0 0 0 0 0
FastEthernet2/0/44 0 0 0 0 0 0 0 0 0
FastEthernet2/0/45 0 0 0 0 0 0 0 0 0
FastEthernet2/0/46 0 0 0 0 0 0 0 0 0
FastEthernet2/0/47 0 0 0 0 0 0 0 0 0
FastEthernet2/0/48 0 0 0 0 0 0 0 0 0
GigabitEthernet2/0/1 0 0 0 0 0 0 0 0 0
GigabitEthernet2/0/2 0 0 0 0 0 0 0 0 0
GigabitEthernet2/0/3 0 0 0 0 0 0 0 0 0
GigabitEthernet2/0/4 0 0 0 0 0 0 0 0 0
FastEthernet3/0/1 0 0 0 0 0 0 0 0 0
FastEthernet3/0/2 0 0 0 0 0 0 0 0 0
FastEthernet3/0/3 0 0 0 0 0 0 0 0 0
FastEthernet3/0/4 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/5 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/6 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/7 0 0 0 0 18000 2 11000 3 0
FastEthernet3/0/8 0 0 0 0 0 0 0 0 0
FastEthernet3/0/9 0 0 0 0 0 0 0 0 0
FastEthernet3/0/10 0 0 0 0 0 0 0 0 0
FastEthernet3/0/11 0 0 0 0 0 0 0 0 0
FastEthernet3/0/12 0 0 0 0 0 0 0 0 0
FastEthernet3/0/13 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/14 0 0 0 0 18000 1 48000 1 0
FastEthernet3/0/15 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/16 0 0 0 0 16000 6 6000 4 0
* FastEthernet3/0/17 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/18 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/19 0 0 0 0 0 0 1000 1 0
* FastEthernet3/0/20 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/21 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/22 0 0 0 0 0 0 128000 1 0
FastEthernet3/0/23 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/24 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/25 0 0 0 0 0 0 0 0 0
FastEthernet3/0/26 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/27 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/28 0 0 0 0 0 0 0 0 0
FastEthernet3/0/29 0 0 0 0 0 0 0 0 0
FastEthernet3/0/30 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/31 0 0 0 0 0 0 1000 1 0
FastEthernet3/0/32 0 0 0 0 0 0 0 0 0
FastEthernet3/0/33 0 0 0 0 0 0 0 0 0
FastEthernet3/0/34 0 0 0 0 0 0 0 0 0
FastEthernet3/0/35 0 0 0 0 0 0 0 0 0
FastEthernet3/0/36 0 0 0 0 0 0 0 0 0
FastEthernet3/0/37 0 0 0 0 0 0 0 0 0
FastEthernet3/0/38 0 0 0 0 0 0 0 0 0
FastEthernet3/0/39 0 0 0 0 0 0 0 0 0
FastEthernet3/0/40 0 0 0 0 0 0 0 0 0

Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
FastEthernet3/0/41 0 0 0 0 0 0 0 0 0
FastEthernet3/0/42 0 0 0 0 0 0 0 0 0
FastEthernet3/0/43 0 0 0 0 0 0 0 0 0
FastEthernet3/0/44 0 0 0 0 0 0 0 0 0
FastEthernet3/0/45 0 0 0 0 0 0 0 0 0
FastEthernet3/0/46 0 0 0 0 0 0 0 0 0
FastEthernet3/0/47 0 0 0 0 0 0 0 0 0
* FastEthernet3/0/48 0 0 0 0 0 0 1000 1 0
GigabitEthernet3/0/1 0 0 0 0 0 0 0 0 0
GigabitEthernet3/0/2 0 0 0 0 0 0 0 0 0
GigabitEthernet3/0/3 0 0 0 0 0 0 0 0 0
GigabitEthernet3/0/4 0 0 0 0 0 0 0 0 0
Institute_3750#

application response is ok everywhere else. Only the users behind this switch are complaining. The link between this switch and the core switch is a 1gig link.

JFrederick29

Yeah, and its definitely not over used. Doesn't appear to be the network. Any changes recently specific to the users off this switch?

Are the servers directly off the core switch or off a different switch?

dtadmin

ASKER

the servers are directly off the core switch.

JFrederick29

Well then, that limits things. Are these users on a different subnet than the rest of the network or is it a single VLAN and subnet?

dtadmin

ASKER

these users are on vlan 206 which has a subnet of 10.1.6.0/24. The servers are on vlan 1 which has a subnet of 10.1.200.0/255.255.254.0

dtadmin

ASKER

CAT-6509#sh run int vlan206
Building configuration...

Current configuration : 143 bytes
!
interface Vlan206
description UsersInstitute
ip address 10.1.6.1 255.255.255.0
ip access-group 106 in
ip helper-address 10.1.200.16
end

CAT-6509#sh run int vlan1
Building configuration...

Current configuration : 112 bytes
!
interface Vlan1
description Servers
ip address 10.1.200.1 255.255.254.0
ip helper-address 10.1.200.16
end

CAT-6509#

10.1.200.16 is my primary DNS server

dtadmin

ASKER

10.1.200.16 is also our DHCP server which is what the clients get their IP addressing from.

JFrederick29

From a command prompt on a PC on this switch, do the following:

ping 10.1.200.16 -l 1500 -n 20

Also, post the following from the switch:

show version
show proc cpu <--just the top lines
show mem <--just the top lines

If this is the only switch where people are complaining, you could try rebooting it. You could have run into a bug or be low on resources.

dtadmin

ASKER

Institute_3750#sh ver
Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Thu 19-Jul-07 19:15 by nachen
Image text-base: 0x00003000, data-base: 0x01080000

ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEC, RELEASE SOFTWARE (fc4)

Institute_3750 uptime is 3 days, 23 minutes
System returned to ROM by power-on
System image file is "flash:c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin"

cisco WS-C3750-48P (PowerPC405) processor (revision L0) with 118784K/12280K bytes of memory.
Processor board ID FDO1231Y1ZT
Last reset from power-on
2 Virtual Ethernet interfaces
144 FastEthernet interfaces
12 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:22:91:E5:9D:80
Motherboard assembly number : 73-9675-12
Power supply part number : 341-0029-05
Motherboard serial number : FDO123107JD
Power supply serial number : DTN122547KL
Model revision number : L0
Motherboard revision number : A0
Model number : WS-C3750-48PS-S
System serial number : FDO1231Y1ZT
SFP Module assembly part number : 73-7757-03
SFP Module revision Number : A0
SFP Module serial number : FDO123109FQ
Top Assembly Part Number : 800-25858-04
Top Assembly Revision Number : A0
Version ID : V06
CLEI Code Number : COMUX10ARA
Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C3750-48P 12.2(35)SE5 C3750-IPBASE-M
2 52 WS-C3750-48P 12.2(35)SE5 C3750-IPBASE-M
3 52 WS-C3750-48P 12.2(35)SE5 C3750-IPBASE-M

Switch 02
---------
Switch Uptime : 3 days, 23 minutes
Base ethernet MAC Address : 00:22:BE:02:92:00
Motherboard assembly number : 73-9675-12
Power supply part number : 341-0029-05
Motherboard serial number : FDO12310JD3
Power supply serial number : DTN122547KN
Model revision number : L0
Motherboard revision number : A0
Model number : WS-C3750-48PS-S
System serial number : FDO1231Y1ZU
SFP Module assembly part number : 73-7757-03
SFP Module revision number : A0
SFP Module serial number : FDO1231093V
Top assembly part number : 800-25858-04
Top assembly revision number : A0
Version ID : V06
CLEI Code Number : COMUX10ARA

Switch 03
---------
Switch Uptime : 3 days, 23 minutes
Base ethernet MAC Address : 00:22:91:E6:CC:00
Motherboard assembly number : 73-9675-12
Power supply part number : 341-0029-05
Motherboard serial number : FDO123107NB
Power supply serial number : DTN122542DM
Model revision number : L0
Motherboard revision number : A0
Model number : WS-C3750-48PS-S
System serial number : FDO1231Y1X2
SFP Module assembly part number : 73-7757-03
SFP Module revision number : A0
SFP Module serial number : FDO123109TD
Top assembly part number : 800-25858-04
Top assembly revision number : A0
Version ID : V06
CLEI Code Number : COMUX10ARA

Configuration register is 0xF
_____________________________________________________________

CPU utilization for five seconds: 11%/0%; one minute: 8%; five minutes: 8%

_____________________________________________________________

Institute_3750#show mem
Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 1D0AA50 91444656 28563528 62881128 61029676 60509704
I/O 7400000 12574720 8435000 4139720 3601356 3642576

JFrederick29

Switch looks fine and it appears it was rebooted a little over 3 days ago. Was this your attempt to resolve the issue? or did you upgrade software? or did the problem start after the reboot?

dtadmin

ASKER

I never rebooted it or upgraded it. I may have been a loss of power