in my opinion MPLS VPN has already some sort of a security model in regards to traffic isolation/segregation via RDs, what a firewall could do however is to do a more intelligent work like threat detection/virus scanning etc.
Your firewall is always better to be implemented from a Security Prespective to Protect your Local and DMZ Networks if you have any. the MPLS - VPN provides some sort of security but it's not enough if you have services to be protected in your Network.
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
IntroductionIn this article we'll discuss how to troubleshoot packet
loss in the asr9000 and specifically understanding the NP drop counters,
what they mean and what you can do to mitigate them. This document will
be an ongoing effort to improve troublesh...