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RSPAN complicated

fewlcisco
Level 1
Level 1

‎02-28-2013 09:13 AM - edited ‎03-07-2019 11:59 AM

Good day!

I'am using this configuration:

IP phone-----3560-------3750_kernel-------3750-1/2(stack)---->RSPAN destination port

                                                   ^

                                                   |

                                       port-channel(SFP)

                                             STP pvst

If RSPAN destination port will be on 3750_kernel everything works well. But nothing if RSPAN destination port on 3750-1/2(stack). 

3750-1/2(stack):

monitor session 2 source remote vlan 900
monitor session 2 destination interface Gi1/0/4

3560 and 3750_kernel:

monitor session 2 source vlan 7
monitor session 2 destination remote vlan 900

Any ideas?

Labels:
0 Helpful
5 Replies 5

smitesh kharecha
Level 5
Level 5

‎02-28-2013 09:43 AM

Hi Dmitrity,

Assuming your RSPAN vlan is 900...

You need to do the following on 3560 and 3750_kernel

conf t

vlan 900

remote span

end

Regards,

Smitesh


PS: Please rate helpful posts.

0 Helpful

fewlcisco
Level 1
Level 1
In response to smitesh kharecha

‎02-28-2013 09:48 AM

I wrote only importan commands. 900 vlan was created by VTP on all switches.

0 Helpful

smitesh kharecha
Level 5
Level 5
In response to fewlcisco

‎02-28-2013 10:11 AM

Important thing in above is

REMOTE SPAN

which should be given inside vlan mode.

Just to remove ambiguity, see below:

Switch(config)# vlan 900

Switch(config-vlan)# remote span

Switch(config-vlan)# end

If you have configure it same, then next thing to check is whether the RSPAN vlan is passed though all the switches...

Regards,

Smitesh

0 Helpful

fewlcisco
Level 1
Level 1
In response to smitesh kharecha

‎02-28-2013 10:20 AM

RSPAN works on 3750_kernel... Trunk ports everywhere.

3750-1/2(stack) configuration:

Using 7820 out of 524288 bytes

!

! Last configuration change at 17:20:35 MSK Thu Feb 28 2013

! NVRAM config last updated at 17:27:15 MSK Thu Feb 28 2013

!

version 12.2

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname C3750

!

boot-start-marker

boot-end-marker

!

enable password 7 072E234F1F5B4A

!

no aaa new-model

clock timezone MSK 4

switch 1 provision ws-c3750g-24ts-1u

switch 2 provision ws-c3750g-24ts-1u

system mtu routing 1500

vtp interface vlan30

ip subnet-zero

!

!

!

!

crypto pki trustpoint TP-self-signed-1447561216

enrollment selfsigned

subject-name cn=IOS-Self-Signed-Certificate-1447561216

revocation-check none

rsakeypair TP-self-signed-1447561216

!

!

crypto pki certificate chain TP-self-signed-1447561216

certificate self-signed 01 nvram:IOS-Self-Sig#3637.cer

!

!

!

!

!

spanning-tree mode pvst

spanning-tree extend system-id

!

vlan internal allocation policy ascending

!

!

!

interface Port-channel1

switchport access vlan 31

!

interface Port-channel2

switchport access vlan 31

!

interface Port-channel3

switchport access vlan 32

!

interface Port-channel4

switchport access vlan 32

switchport mode access

!

interface Port-channel5

switchport access vlan 32

!

interface Port-channel6

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface GigabitEthernet1/0/1

switchport access vlan 32

switchport mode access

channel-protocol lacp

channel-group 5 mode active

!

interface GigabitEthernet1/0/2

switchport access vlan 32

switchport mode access

channel-protocol lacp

channel-group 5 mode active

!

interface GigabitEthernet1/0/3

switchport access vlan 32

switchport mode access

channel-protocol lacp

channel-group 4 mode active

!

interface GigabitEthernet1/0/4

switchport access vlan 32

switchport mode access

channel-protocol lacp

channel-group 4 mode active

!

interface GigabitEthernet1/0/5

switchport access vlan 32

channel-protocol lacp

channel-group 3 mode active

!

interface GigabitEthernet1/0/6

switchport access vlan 32

channel-protocol lacp

channel-group 3 mode active

!

interface GigabitEthernet1/0/7

switchport access vlan 201

!

interface GigabitEthernet1/0/8

switchport access vlan 201

!

interface GigabitEthernet1/0/9

switchport access vlan 9

!

interface GigabitEthernet1/0/10

switchport access vlan 9

!

interface GigabitEthernet1/0/11

switchport access vlan 32

!

interface GigabitEthernet1/0/12

switchport access vlan 32

!

interface GigabitEthernet1/0/13

switchport access vlan 32

!

interface GigabitEthernet1/0/14

!

interface GigabitEthernet1/0/15

description ======= RSPAN port  =======

!

interface GigabitEthernet1/0/16

switchport access vlan 32

switchport mode access

!

interface GigabitEthernet1/0/17

switchport access vlan 42

switchport mode access

!

interface GigabitEthernet1/0/18

switchport access vlan 201

!

interface GigabitEthernet1/0/19

!

interface GigabitEthernet1/0/20

!

interface GigabitEthernet1/0/21

!

interface GigabitEthernet1/0/22

!

interface GigabitEthernet1/0/23

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface GigabitEthernet1/0/24

switchport access vlan 32

switchport trunk encapsulation dot1q

switchport mode access

!

interface GigabitEthernet1/0/25

switchport trunk encapsulation dot1q

switchport mode trunk

channel-protocol lacp

channel-group 6 mode active

!

interface GigabitEthernet1/0/26

!

interface GigabitEthernet1/0/27

!

interface GigabitEthernet1/0/28

!

interface GigabitEthernet2/0/1

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 40,41

switchport mode trunk

!

interface GigabitEthernet2/0/2

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 40,41

switchport mode trunk

!

interface GigabitEthernet2/0/3

switchport access vlan 201

!

interface GigabitEthernet2/0/4

switchport access vlan 201

!

interface GigabitEthernet2/0/5

switchport access vlan 31

!

interface GigabitEthernet2/0/6

switchport access vlan 31

!

interface GigabitEthernet2/0/7

switchport access vlan 31

!

interface GigabitEthernet2/0/8

switchport access vlan 32

!

interface GigabitEthernet2/0/9

switchport access vlan 201

switchport mode access

!

interface GigabitEthernet2/0/10

switchport access vlan 31

switchport mode access

!

interface GigabitEthernet2/0/11

switchport access vlan 201

!

interface GigabitEthernet2/0/12

switchport access vlan 32

switchport mode access

!

interface GigabitEthernet2/0/13

switchport access vlan 32

!

interface GigabitEthernet2/0/14

!

interface GigabitEthernet2/0/15

switchport access vlan 31

channel-protocol lacp

channel-group 2 mode active

!

interface GigabitEthernet2/0/16

switchport access vlan 31

channel-protocol lacp

channel-group 2 mode active

!

interface GigabitEthernet2/0/17

switchport access vlan 31

channel-protocol lacp

channel-group 1 mode active

!

interface GigabitEthernet2/0/18

switchport access vlan 31

channel-protocol lacp

channel-group 1 mode active

!

interface GigabitEthernet2/0/19

!

interface GigabitEthernet2/0/20

!

interface GigabitEthernet2/0/21

!

interface GigabitEthernet2/0/22

!

interface GigabitEthernet2/0/23

!

interface GigabitEthernet2/0/24

switchport access vlan 32

switchport mode access

!

interface GigabitEthernet2/0/25

switchport trunk encapsulation dot1q

switchport mode trunk

channel-protocol lacp

channel-group 6 mode active

!

interface GigabitEthernet2/0/26

!

interface GigabitEthernet2/0/27

!

interface GigabitEthernet2/0/28

!

interface Vlan1

ip address 10.6.10.111 255.255.255.0

!

interface Vlan30

ip address 10.6.30.50 255.255.255.0

!

interface Vlan31

ip address 10.6.31.254 255.255.255.0

!

interface Vlan32

ip address 10.6.32.254 255.255.255.0

!

ip default-gateway 10.6.31.1

ip classless

ip route 0.0.0.0 0.0.0.0 10.6.31.1

ip http server

ip http secure-server

!

logging trap debugging

logging facility local6

logging 10.6.32.4

!

control-plane

!

!

line con 0

exec-timeout 0 0

password 7 11281

login

line vty 0 4

exec-timeout 0 0

password 7 11281

login

line vty 5 15

exec-timeout 0 0

password 7 11281

login

!

!

monitor session 1 source vlan 8 , 31 - 32 , 40 - 43 , 200 - 201

monitor session 1 destination interface Gi1/0/14

monitor session 2 destination interface Gi1/0/15

monitor session 2 source remote vlan 900

ntp logging

ntp clock-period 36028705

ntp server 10.6.10.1 source Vlan1 prefer

end

0 Helpful

smitesh kharecha
Level 5
Level 5
In response to fewlcisco

‎02-28-2013 10:41 AM

Hi Dmitriy,

The command which I'm suggesting would be never seen in show running or show start, as it is specific to vlan command mode and hence would be save in vlan.dat.

Hence, if you not sure whether you have given those command or not; just put them in the following order on both the switches and then check.

Switch(config)# vlan 900

Switch(config-vlan)# remote span

Switch(config-vlan)# end

Regards,

Smitesh

0 Helpful
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