NG-MVPN Example Configuration Cisco IOS-XR with GTM (Global Table Multicast)

04.01 2023 | by massimiliano

---

NG-MVPN Example Configuration Cisco with GTM (Global Table Multicast)  Architettura di riferimento:         Configuration for Ingress or […]

https://www.ingegnerianetworking.com/wp-content/uploads/2023/01/arch-riferimento-adc.png

NG-MVPN Example Configuration Cisco with GTM (Global Table Multicast)

 Architettura di riferimento:

 

 

 

 

Configuration for Ingress or Egress PE node with GTM (Global Table Mulicast) using MVPN SAFI:

 

multicast-routing

  address-family ipv4

  mdt source loopback0

  mdt default <mldp | p2mp-te | ingress-replication>

  mdt partitioned <mldp | p2mp-te | ingress-replication>

  bgp auto-discovery <mldp | p2mp-te | ingress-replication>

     export-rt <value>

     import-rt <value>

!

router bgp 65512

  address-family ipv4

    global-table-multicast

 

Nota:

With GTM there are not VRF and not VPNv4 routes; the multicast specific attributes have to be added to global table iBGP routes (SAFI=1 or SAFI=2).

These routes are learnt through eBGP (from a CE) or from a different unicast routing protocol.

 

 single forwarder selection is not supported for GTM

 route targets: with GTM there are not VRF, hence the export and import RT configured under VRF are not reliable; for MVPN SAFI routes, RT must be attached. Import and Export route targets configuration under   multicast routing is supported. These are the RT used for type 1, 3 and 5 routes. MVPN SAFI routes received without any RT will not be accepted by an XR router PE

 core-tree protocols: mLDP, P2MP-TE (static and dynamic), and IR core-tree are supported

 C-multicast routing: PIM and BGP are supported

 MDT models: Default-MDT and Partitioned-MDT are supported; Data-MDT is supported with its various option (thresholds zero, immediate-switch, starg s-pmsi, etc…)

 

 The mdt default, mdt partitioned and bgp auto-discovery are present under VRF; with GTM using MVPN SAFI the configuration are reflected in global table as well.

The global-table-multicast configuration enables processing of All-0’s RD