Tag Archives: Internet Control Message Protocol

mpls: pseudowire emulation / any tansport over mpls – interconnecting sites via layer 2 – (part 2)

Hi again! Now its time for part 2 of the MPLS Layer 2 interconection between two sites. Challenge: – interconnect two sites via PEM but without an MPLS enabled service provider network Preconfigured & given: – topology of Part 1 … Continue reading

Posted in MPLS | Tagged , , , , , , , , , , , , , | Leave a comment

frame-relay: bridging over a frame-relay back to back connection

In this scenario I will show you how to bridge ethernet frames over a frame-relay connection. We have four routers in our topology. Two of them are the WAN routers connected via frame-relay back to back and two remote sites … Continue reading

Posted in CCIE, Frame Relay | Tagged , , , , , , , , , , , , , , , | Leave a comment

REMINDER: ICMP type codes

Type 0 — Echo Reply Type 1 — Unassigned Type 2 — Unassigned Type 3 — Destination Unreachable Type 4 — Source Quench (Deprecated) Type 5 — Redirect Type 6 — Alternate Host Address Type 7 — Unassigned Type 8 … Continue reading

Posted in Reminders | Tagged , , , | 1 Comment

pim sparse mode – rp on a stick

Hi everybody! Very often without knowing it in PIM sparse networks we encounter the situation that the RP of a network is a RP on a stick. Take a look at the drawing to get a better understanding of the … Continue reading

Posted in Multicast | Tagged , , , , , , , , , , | Leave a comment