August 2020 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
- Facebook Netops Nanog – FBAR
- AWS Identify and Access Management(IAM)
- SSL/TLS certificates beginner’s tutorial | Talpor Solutions Blog
- Generating device configuration using Ansible and Jinja2
- NetNORAD – Facebook TSHOOT tool
- Accessing HomePC from Anywhere[without traffic passing through a third-party app]
Category Archives: mpls
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:
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
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
We can selectively import/export vpnv4 prefix to a VRF using import/export map. Below is the summary; Export Map; We can match a prefix using access-list and set the extended community RT to a specific value. The Export RTs configured on the VRF … Continue reading
MPLS VPN Terminologies; CE router- Router in Customer network (C-network) which peers with service provider edge(PE- router) in Provider network (P-network) P-routers are completely unaware of VPN. Only edge-routers(PE) are aware.
Below are some default timer values associated with MPLS. LDP Discovery hello interval 5 secs. Can be changed by “mpls ldp discovery hello x” LDP neighbor hold interval 15 sec. Can be changed by “mpls ldp discovery hello holdtime x” LDP session … Continue reading
RFC 3032 mentions about reserved labels whose range is from 0-15. Label-0:” Explicit IPv4 Null Label”; Purpose of this label is same as “implicit Null Label” mentioned below.
VPLS – Virtual Private LAN Service (VPWS – wire) For Seamless integration of networks like HDLC, Ethernet, FR, ATM. The service provider network act as a L2 virtual switch. VSI (Virtual switching Identifier) is used for packet switching. VSI forwarding information has data about … Continue reading