MPLS

dangal.43 · ‎05-29-2007

what is difference between MPLS and tag-switching? are both terms are different?

is there any good link or document for understanding the MPLS VPN basic with MP-BGP?

Harold Ritter · ‎05-29-2007

Dan,

Tag Switching was developped by Cisco and later became MPLS as it was formalized by the IETF.

There is tons of documents out there discussing MPLS VPN. A good start would be RFC4364, which specifies and documents MPLS VPN.

http://www.ietf.org/rfc/rfc4364.txt?number=4364

Cisco Press has an excellent book discussing this subject. It is called MPLS and VPN Architectures.

Many white papers can also be found at the following URL:

www.cisco.com/go/mpls

Hope this helps,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

dangal.43 · ‎05-29-2007

so if i will fire command "mpls ip" or "tag-switching" both will do the same function..... is that correct?

Harold Ritter · ‎05-29-2007

That is correct although the tag-switching comamnds are being deprecated.

Hope this helps,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

dangal.43 · ‎05-29-2007

sir one more thing in AToM we have one label called VCID, so we can say that the each VCID identifies the each Virtual Pseudowire connection between two PE devices for appropriate Customers? can i enable the various QOS features on Pseudowire tunnel?

will you please give me some limitation or drawbacks of MPLS Pseudowire tunneling?