NG-MVPN Example Configuration Cisco IOS-XR with GTM (Global Table Multicast)
04.01 2023 | by massimilianoNG-MVPN Example Configuration Cisco with GTM (Global Table Multicast) Architettura di riferimento: Configuration for Ingress or […]
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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