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Category Archives: rsvp
Layer-2 and Layer-3 VPN: From JUNOS
Common terminologies: Customer-edge, provide-edge, provider router. VRF – Virtual Routing and Forwarding table: Used in L3 VPN to store customer routes. VFT – Virtual Forwarding table:
Posted in Junos, ldp, mpls, rsvp
Tagged internet access, l2 circuit, l2 vpn, l3 vpn, rd, route target
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Junos/IOS RSVP tunnel configuration
root@Juniper> show configuration interfaces em0 { unit 0 {
Advanced MPLS: From JUNOS
Constrained Shortest path first (CSPF) CSFP is the modified version of SPF algorithm where the data is taken from TED (Traffic engineering database) which has much information about networks like each router’s interface bandwidth, available priority values and other administrative … Continue reading
Posted in jncis, Junos, ldp, mpls, rsvp
Tagged adaptive, cspf, fast reroute, hold priority, isis te, link and node protection, ospf te, setup priority
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RSVP and LDP: From JUNOS
Resource Reservation Protocol (RSVP): IP protocol number: 46 (0x2e in Hex). Each RSVP packet has common RSVP header which consist of following fields: Version – 4 bits – set to 0x01 Flags – 4 bits –000A. When bit A is … Continue reading
Basic MPLS and configuration: From JUNOS
MPLSs’ original goal was to increase the routers’ packet processing speed. But now, due to advancement in ASIC, it is primarily used for traffic engineering. Terminologies: LSP – Label switched path. A unidirectional logical link created by MPLS protocol. LSR … Continue reading