Please take a look at https://replay.bgphelp.com
BGP Replay is a web platform designed for network engineers and researchers to analyze historical BGP prefix advertisements. It allows users to replay BGP routing events over time, providing insights into changes in prefix announcements, withdrawals, and propagation. The tool is built for practical use cases like diagnosing past routing issues, analyzing prefix hijacks, or studying the behavior of a specific IPv4 or IPv6 prefix.
NG-mVPN is a next-generation multicast distribution technology that is predominantly used in service provider networks and addresses scalability and manageability issues associated with the previous generation of SP Multicast VPN (Draft Rosen).
In this article, we will go through configuration steps you’d need to undertake to configure NG-mVPN in a Juniper environment. We will also discuss BGP advertisements that are associated with multicast sources and receivers connected to the network.
Continue reading “Next Generation Multicast VPN (NG-MVPN) configuration example”
Useful Commands:
Continue reading “Juniper Segment Routing Troubleshooting commands”
Ethernet VPN (EVPN) is a new technology that is used to extend Ethernet circuits across Data Center and Service Provider networks. It is expected to succeed other L2VPN transport methods such as BGP-based L2VPN (RFC6624), LDP-Based L2VPN (RFC4906) and VPLS.
EVPN introduces a set of new features that were not available in L2VPN and VPLS environments, most noticeable of which are All-Active Multi-homing across multiple PE devices and more efficient handling of L2 Multicast traffic.
Refer to RFC 7209 to better understand the rationale for creating EVPN.
Continue reading “EVPN FAQ”
One of the most exciting features of EVPN technology is support for L2 Multi-Homing, where customer CE/Server/VM can be connected to multiple PE devices as depicted below.
Continue reading “EVPN Type 7/8 (IGMP Join/Leave Synch Routes) Explained”
EVPN Type 6 Route is defined in IGMP and MLD Proxy for EVPN IETF draft. The purpose of this route is to distribute Host’s or VM’s intent to receive Multicast traffic for a certain Multicast Group (*,G) or Source-Group combination (S,G).
Continue reading “EVPN Type 6 (Selective Multicast Ethernet Tag Route) Explained”
Section 16 of EVPN RFC7432 defines the mechanism for forwarding multicast traffic within EVPN networks. Ingress Replication and/or P2MP LSPs may be used for Multicast forwarding. The major shortcoming of Multicast forwarding approach defined in RFC7432 is the lack of per-group multicast trees, meaning that Multicast traffic is getting forwarded to all PE devices participating in a given EVPN instance, regardless of presence of interested receivers.
Continue reading “Need for IGMP and MLD Proxy in EVPN Environment”
| Route Type | Description | RFC | Route Type Explained |
| 0 | Reserved | RFC 7432 | |
| 1 | Ethernet Auto-Discovery (A-D) route | RFC 7432 | EVPN Type 1 Explained |
| 2 | MAC/IP advertisement route | RFC 7432 | EVPN Type 2 Explained |
| 3 | Inclusive Multicast Route | RFC 7432 | EVPN Type 3 Explained |
| 4 | Ethernet Segment Route | RFC 7432 | EVPN Type 4 Explained |
| 5 | IP Prefix Route | draft-ietf-bess-evpn-prefix-advertisement-04 | EVPN Type 5 Explained |
| 6 | Selective Multicast Ethernet Tag Route | draft-ietf-bess-evpn-igmp-mld-proxy-00 | EVPN Type 6 Explained |
| 7 | IGMP Join Synch Route | draft-ietf-bess-evpn-igmp-mld-proxy-00 | EVPN Type 7 Explained |
| 8 | IGMP Leave Synch Route | draft-ietf-bess-evpn-igmp-mld-proxy-00 | EVPN Type 8 Explained |
| 9 | Per-Region I-PMSI A-D route | draft-ietf-bess-evpn-bum-procedure-updates-01 | |
| 10 | S-PMSI A-D route | draft-ietf-bess-evpn-bum-procedure-updates-01 | |
| 11 | Leaf A-D route | draft-ietf-bess-evpn-bum-procedure-updates-01 | |
| 12-255 | Unassigned
|
In this article, we will review EVPN MPLS Port-Based VLAN-Aware Bundle Service configuration example using Juniper MX devices. As per Port-Based VLAN-Aware service definition in RFC7432, all of the VLANs on the port are part of the same service and are mapped to a single bundle without any VID translation.
In our sample, we will add L3 IRB interfaces to VLANs, simulating L3 Default Gateways.
Continue reading “EVPN MPLS Port-Based VLAN-Aware Bundle Service”
In this article, we will review inter-subnet routing scenarios in EVPN environment. As we will discover, certain topologies might lead to sub-optimal traffic flows within EVPN network.
Our setup will be comprised of three PE and four CE devices as shown below:
Continue reading “Inter-subnet routing in EVPN MPLS Environment”
