vpls PW type tagged ethernet
please need more info of this.
In which scenario i can use this. wiki saying Pseudowire type,
which i’m not sure what exactly is the mining of that
https://en.wikipedia.org/wiki/Virtual_private_network
Pseudowire on there refers more to old technologies (such as ATM) but same principal applies (and is kind of in the name)
pseudo - not genuine; spurious or sham
So psuedo wire is ‘not a real wire’ meaning it emulates as if you had a direct connection between the 2 endpoints.
Closest comparison would be EoIP - behaves a lot of the same ways such as passing broadcast traffic etc.
sorry, i can’t get you what you saying
pretend is long cable but virtual.
IIRC, you use tagged type when you make use of service tags inside VPLS cloud
more info below
Let’s put it in another words. “pseudowire” is a name of one possible way how payload data are encapsulated into MPLS transport packets; the “pseudowire” encapsulation in particular emulates a behaviour of a “wire” (Ethernet cable) in terms that also L2 headers are being transported.
I’ve compared the contents of the MPLS packets when pw-type is set to raw-ethernet and when it is set to tagged-ethernet, and there is no difference, no matter whether the payload Ethernet frame is VLAN-tagged or not.
But if you configure different pw-type at the endpoints of a VPLS tunnel, the tunnel won’t come up, because the endpoints inform each other about payload type of the individual MPLS flows by means of the LDP protocol. And in case of mismatch, the VPLS tunnel doesn’t establish.
thanks a lot sindy
See below re raw vs tagged
Thanks CZfan
that’s what i have been looking for.
Now i need to think how can i make e.g. of those two features