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Difference betwwen vpls exclude and include

Difference betwwen vpls exclude and include

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Zombie
New Contributor

‎11-11-2020 03:33 AM

I have test VPLS service as below design

 

CE1------>>PE1------>>P1-------->>P2-------->>PE2--------->>CE2

   

PE1 and PE2 are spoke router 

P1 and P2 are core router 

I have configured vpls spoke to core between PE1 and P1 , PE2 and P2

P1 and P2 has vpls core full mesh 

P1 and P2 vpls profile have confiugred dot1q exclude and PE2 and PE1 configured dot1q include 

 

I got ping access between CE1 and CE2 

Here ,I have a question

PE1 and PE2 send to P1 and P2 packet with S VMAN tag

P1 and P2 are configured dot1q exclude.

when they recevie packet with S VMAN tag ,how to handle its.

And I have captured packet in wireshark ,only see MPLS VC label and transit label 

Can’t see dot1q tag detial in packet and it have data 

I need to data packet details .

Please see my design and configuration 

 

b2983beaa1e5468db954844d9aeb6f63_e347406f-8876-4bbc-a44d-5a58315c9895.png

 

 

PE1 Config

Loopback ip of PE1 is 22.22.22.22
 

Lab-PE1.1 # show vpls 
L2VPN Name      VPN ID Flags   Services Name   Peer IP         State Flags 
--------------- ------ ------- --------------- --------------- ----- -------
Test-Vpls       10     EAI-VL- test            1.1.1.1         Up    CAs-V-L


VPN Flags:  (E) Admin Enabled, (A) Oper Enabled, (I) Include Tag,
            (X) Exclude Tag, (T) Ethertype Configured,
            (V) VCCV HC Enabled, (W) VPN Type VPWS, (L) VPN Type VPLS,
            (M) CFM MIP Configured
Peer Flags: (C) Core Peer, (S) Spoke Peer, (A) Active Core,
            (p) Configured Primary Core, (s) Configured Secondary Core, 
            (N) Named LSP Configured, (V) VCCV HC Capabilities Negotiated, 
            (F) VCCV HC Failed, (L) LDP Signaled, (T) Static (Not Signaled)

 

L2VPN Name: Test-Vpls
   VPN ID                : 10                    Admin State   : Enabled
   Source Address        : 22.22.22.22           Oper State    : Enabled
   VCCV Status           : Enabled               MTU           : 1700
   VCCV Interval Time    : 5 sec.                Ethertype     : 0x88a8
   VCCV Fault Multiplier : 4                     .1q tag       : include
   L2VPN Type            : VPLS                  Redundancy    : None
   Service Interface     : test
   Created By            : CLI
 

--------------------------------------------------------------------------

P1 config

 

Loopback ip of P1 is 1.1.1.1

 

P1.1 # show vpls 
L2VPN Name      VPN ID Flags   Services Name   Peer IP         State Flags 
--------------- ------ ------- --------------- --------------- ----- -------
Test-Vpls       10     EAX-VL- test            2.2.2.2         Up    C---V-L
                                               22.22.22.22     Up    S---V-L


VPN Flags:  (E) Admin Enabled, (A) Oper Enabled, (I) Include Tag,
            (X) Exclude Tag, (T) Ethertype Configured,
            (V) VCCV HC Enabled, (W) VPN Type VPWS, (L) VPN Type VPLS,
            (M) CFM MIP Configured
Peer Flags: (C) Core Peer, (S) Spoke Peer, (A) Active Core,
            (p) Configured Primary Core, (s) Configured Secondary Core, 
            (N) Named LSP Configured, (V) VCCV HC Capabilities Negotiated, 
            (F) VCCV HC Failed, (L) LDP Signaled, (T) Static (Not Signaled)
 

P1.3 # show vpls Test-Vpls detail 
L2VPN Name: Test-Vpls
   VPN ID                : 10                    Admin State   : Enabled
   Source Address        : 1.1.1.1               Oper State    : Enabled
   VCCV Status           : Enabled               MTU           : 1700
   VCCV Interval Time    : 5 sec.                Ethertype     : 0x88a8
   VCCV Fault Multiplier : 4                     .1q tag       : exclude
   L2VPN Type            : VPLS                  Redundancy    : None
   Service Interface     : test
   Created By            : CLI
 

-----------------------------------------------

P2 config

 

Loopback ip of P2 is 2.2.2.2

 

Lab-P2.1 # show vpls 
L2VPN Name      VPN ID Flags   Services Name   Peer IP         State Flags 
--------------- ------ ------- --------------- --------------- ----- -------
Test-Vpls       10     EAX-VL- test            1.1.1.1         Up    C---V-L
                                               33.33.33.33     Up    S---V-L


VPN Flags:  (E) Admin Enabled, (A) Oper Enabled, (I) Include Tag,
            (X) Exclude Tag, (T) Ethertype Configured,
            (V) VCCV HC Enabled, (W) VPN Type VPWS, (L) VPN Type VPLS,
            (M) CFM MIP Configured
Peer Flags: (C) Core Peer, (S) Spoke Peer, (A) Active Core,
            (p) Configured Primary Core, (s) Configured Secondary Core, 
            (N) Named LSP Configured, (V) VCCV HC Capabilities Negotiated, 
            (F) VCCV HC Failed, (L) LDP Signaled, (T) Static (Not Signaled)
 

Lab-P2.3 # show vpls Test-Vpls detail 
L2VPN Name: Test-Vpls
   VPN ID                : 10                    Admin State   : Enabled
   Source Address        : 2.2.2.2               Oper State    : Enabled
   VCCV Status           : Enabled               MTU           : 1700
   VCCV Interval Time    : 5 sec.                Ethertype     : 0x88a8
   VCCV Fault Multiplier : 4                     .1q tag       : exclude
   L2VPN Type            : VPLS                  Redundancy    : None
   Service Interface     : test
   Created By            : CLI

--------------------------------------------------

PE2 config

 

Loopback ip of PE2 is 33.33.33.33

 

Lab-PE2.1 # show vpls Test-Vpls 
L2VPN Name      VPN ID Flags   Services Name   Peer IP         State Flags 
--------------- ------ ------- --------------- --------------- ----- -------
Test-Vpls       10     EAI-VL- test            2.2.2.2         Up    CAp-V-L

VPN Flags:  (E) Admin Enabled, (A) Oper Enabled, (I) Include Tag,
            (X) Exclude Tag, (T) Ethertype Configured,
            (V) VCCV HC Enabled, (W) VPN Type VPWS, (L) VPN Type VPLS,
            (M) CFM MIP Configured
Peer Flags: (C) Core Peer, (S) Spoke Peer, (A) Active Core,
            (p) Configured Primary Core, (s) Configured Secondary Core, 
            (N) Named LSP Configured, (V) VCCV HC Capabilities Negotiated, 
            (F) VCCV HC Failed, (L) LDP Signaled, (T) Static (Not Signaled)
 

 


Lab-PE2.2 # show vpls Test-Vpls detail 
L2VPN Name: Test-Vpls
   VPN ID                : 10                    Admin State   : Enabled
   Source Address        : 33.33.33.33           Oper State    : Enabled
   VCCV Status           : Enabled               MTU           : 1700
   VCCV Interval Time    : 5 sec.                Ethertype     : 0x88a8
   VCCV Fault Multiplier : 4                     .1q tag       : include
   L2VPN Type            : VPLS                  Redundancy    : None
   Service Interface     : test
   Created By            : CLI
 

Please see wireshark packets details

b2983beaa1e5468db954844d9aeb6f63_05cb40cd-0636-49b0-9e71-4f518a4e9d3c.png

 

I need to know data packet and what have it under as like below image that is you says 

b2983beaa1e5468db954844d9aeb6f63_2ab5e235-7db2-49d4-9079-296107a0e200.png

 it got from below link

https://extremeportal.force.com/ExtrArticleDetail?an=000077359

Please advice me and thanks

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Necheporenko__N
Extreme Employee

‎11-17-2020 01:35 PM

Hello Zombie,

Each VPLS is VFI (virtual forwarding instance) with attached VP (virtual port), this VPs might be port/vlan or PWs. In your case packets should be forwarded between 2 PWs. Also in your design P-routers acts as PEs, as they strip off MPLS header and add new one (not only top label). So every PE in your case does encapsulation/decapsulation process. In your test ICMP packets is forwarded within VFI between 2 PWs so packets received from PW1 decapsulate and then encapsulate into PW2, and right now we could not confirm that this dec/enc process is the same as for packet which is received from local attached port/vlan. Probably some hardware registers should not be reprogrammed to keep latency low.

To get more info on this additional tests are required, so if you are interested please raise service case.

 

Best Regards,

Nikolay

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Necheporenko__N
Extreme Employee

‎11-12-2020 08:38 AM

Hello Zombie,

The issue itself is not with the packets or EXOS config but with the “wireshark” settings as it could not filter out input correctly and print it like raw data. I’ve taken data from your picture “88 A2 00 77 5B 90 78 8A 20 BC 6E AD 88 A8 00 0A 81 00 00 64 08 00 45 00 00” and decoded it with https://hpd.gasmi.net and got correct data you are looking for 

32f9ac9163f84a8c9ee79f910d339ef9_dae0aa62-992a-47f5-ab8f-d8bce48a01f5.png

 

So if you need to know data packet you have to tune wireshark settings or use “editcap” tool, which may strip first n bytes from the packets (mpls part), like in example below:

editcap -C 52 mpls.pcap  ## strip first 52 bytes

Best Regards,

Nikolay

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