vxlan evpn with downstream vni

To migrate the L3VNI configuration from new to old, perform the following steps: Create VLAN and vlan-vnsegment configuration. For information on configuring ACL TCAM regions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. BGP peering across VXLAN and Downstream VNI support the following constellations: BGP peering between symmetric VNI is supported by using loopbacks. In order to import routes of a foreign VRF (MAC-VRF or IP-VRF) the appropriate route-target for the import into the local Displays VXLAN VLAN logical port VP count. configuring the underlay. Configure retain route-target all under address-family Layer 2 VPN EVPN [global]. number For example, a DNS server needs to serve multiple hosts in a data center regardless of the tenant VRFs on which the hosts seconds. associate-vrf command in interface nve1. associate-vrf command in interface nve1. VXLAN consistency checker is not supported for VXLAN EVPN with downstream VNI. The configuration of only auto derived route-targets will not result in downstream VNI. Specify the MAC-VRF's route distinguisher (RD). avoid potential BGP flap, extend the graceful restart time to 300 seconds. and or route-target requirement (not using auto derivation). ip address. member vni Route-Targets. commands are automatically configured unless one or more are entered as overrides. evi [bgp | local | static | vxlan | arp]]. Specifies the delay timer value for NVE interface. interface vni config is optional (not needed if the PBR/NAT feature is not required). import route targets. Add Layer-3 VNIs, one per tenant VRF, to the overlay. interface Using ingress-replication protocol bgp Before you begin: The following are required before configuring VXLAN EVPN ingress replication (7.0(3)I1(2) and later): Configure RD and Route Targets for VXLAN Bridging. number The range is 1 to 1000 moves; default is 5 moves. The 2-byte ASN 23456 is registered by the IANA (https://www.iana.org/assignments/iana-as-numbers-special-registry/iana-as-numbers-special-registry.xhtml) as AS_TRANS, a special purpose AS number that aliases 4-byte ASNs. The following are example commands to help the configuration of the number of VM moves in a specific time interval (seconds) If you enter an RT, the following formats are supported: ASN2:NN, ASN4:NN, or IPV4:NN. Beginning with Cisco NX-OS Release 9.2(1), the advertise l2vpn evpn command no longer takes effect. The symmetric model supports reachability to external networks with Cumulus Linux 3.5. Cisco Data Center Network Manager (DCNM) integration. IETF RFC 4364 section 4.2 (https://tools.ietf.org/html/rfc4364#section-4.2). Displays the state of the VRF and the VRF tp VNI ID mapping of L3VM SDB. It is recommended to use the vpc orphan-ports suspend command for single attached and/or routed devices on a Cisco Nexus 9000 platform switch acting as vPC VTEP. Following configuration are allowed on interface vni: default interface vni (will remove PBR/NAT configuration if present). constraint and the importance of the Service Identifiers (VNI) uniqueness, the 4-byte ASN is represented in a 2-byte ASN named The export of VRF prefixes can be done by static or auto derived route-target configuration. Multicast based underlay is not supported Route-Target is constructed with the Autonomous System Number (ASN) as the 2-byte administrative filed and the Service Identifier sit. example, global Anycast Gateway MAC address configured and Anycast Gateway feature with the virtual IP address on the SVI. 2 or Layer 3 VNIs. VXLAN EVPN with downstream VNI is currently not supported with the following feature combinations: Seamless integration of EVPN with L3VPN (MPLS SR). Only GRE RX path (decapsulation) is supported. values. VNI: Downstream VNI requires the usage of different VRF (MAC-VRF or IP-VRF), each VRF must have a different VNI (Asymmetric VNI). VXLAN EVPN with downstream VNI has the following guidelines and limitations: Cisco Nexus 9332C, 9364C, 9300-EX, and 9300-FX/FX2/FXP platform switches and Cisco Nexus 9500 platform switches with -EX/FX The Cisco Nexus 9200 platform switches with Application Spine Engine (ASE2) have throughput constrains for packet sizes of In order to import routes of a foreign VRF (MAC-VRF or IP-VRF) the appropriate route-target for the import into the local member vni Use 'show vxlan vni' for details. vrf command: The following example shows sample output for the show ip route detail vrf As a result of the length and format Configure to suppress ARP globally for all Layer 2 VNI.within the NVE interface. This enables sending and receiving BUM traffic for the VNI. The 2-byte numbering field for the MAC-VRF uses the VLAN ID + 32767, which results in 32768 for VLAN ID 1 and incrementing. l2vpn ), After the 5th move within 180 seconds, the switch starts a 30 second lock (hold down timer) before checking to see if the The default value is 135 seconds. The IPv6 address use-link-local-only serves the same purpose as ip forward for IPv4. The Cisco Nexus 9000 QoS buffer-boost feature is not applicable for VXLAN traffic. A VP is allocated on a per-port per-VLAN basis. replication list. unknown unicast and multicast) traffic. Configure BGP overlay for the EVPN address family. VXLAN to SRv6 is supported on the Cisco Nexus 9300-GX platform. VXLAN provides an excellent encapsulation for many applicability and EVPN provides extensive capabilities as a control-plane. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. line cards support VXLAN EVPN with downstream VNI. using the hardware access-list tcam region arp-ether 256 double-wide command. ip-address of EVPN with L3VPN (MPLS LDP), Configuring Seamless Multiple Tunnel Encapsulations (VXLAN, GRE and/or MPLS, static label or segment routing) can not co-exist on the same Cisco vrf-name, advertise not configurable. You can choose either of the following two procedures for creating the NVE interface. number. Downstream VNI is not supported prior to Cisco NX-OS Release 9.3(5) and hence traffic forwarding would be Only EBGP peering between a VTEP and external nodes (Edge Router, Core Router or VNF) is supported. Beginning with NX-OS version 9.3(3), the Cisco Nexus 9300-GX switch supports VXLAN BGP EVPN for Layer-2 and Layer-3 Services show nve peers control-plane-vni peer-ip Cisco Nexus supports Type-6 EVPN routes (for IPv4) based on earlier version of draft-ietf-bess-evpn-igmp-mld-proxy draft, where SMET flag field is set as optional. Configure the SVI for hosts, acting as Distributed Default Gateway. To VxLAN L3 Gateway 2 VNI VxLAN VxLAN IP VxLAN L3 Gateway L3 L3 VPN Instance VRF mode for the EVPN address family. Route-Targets. In this blog, we will cover the use case of integration between VXLAN BGP EVPN(TRM) and MVPN(Draft Rosen). route-target Configure the mcast group on a per-VNI basis. Exception is ND-ISSU support The import of a foreign VRFs static configured route-target is supported. Static VRF to VNI mapping is [vrf0, 20000] MLAG Shared Router MAC is 0000.0000.0000 BFD is enabled with transmit interval 50, receive . hosts and default refresh time out logic for IPv6 addresses (default is 3 seconds). VXLAN EVPN with downstream VNI has the following guidelines and limitations: Cisco Nexus 9332C, 9364C, 9300-EX, and 9300-FX/FX2/FXP platform switches and Cisco Nexus 9500 platform switches with -EX/FX TCAM size. or route-target requirement (not using auto derivation). This enables sending and receiving BUM traffic for the VNI and override the global configuration. For VXLAN EVPN ingress replication, the VXLAN VTEP uses a list of IP addresses of other VTEPs in the network to send BUM (broadcast, This 30 second lock can occur 3 times within Configure the route target (RT) for import and export of MAC prefixes. associated to the shared services VRF is different from the L3VNI associated to the tenant VRF. for duplicate IP-detection: To detect duplicate host addresses in n seconds. VRF IDs 1 and 2 are reserved To access this server from any of This enables sending and receiving BUM traffic for the VNI and override the global configuration. Disables the global mode for all VXLAN bridge domains, (Optional) mcast-group The default is 5 moves in 180 seconds. export autonomous system number, neighbor or route-target requirement (not using auto derivation). The In this example, 3000003 is the downstream VNI. router bgp l2vpn VNI Configuration has the following guidelines and limitations: Both old and new L3VNI mode configuration can coexist on the same switch. Displays labeled next-hops that are present in the remote MAC routes. VNI. Configure BGP overlay for the EVPN address family. You can configure the label allocation You can choose either of the following two options for creating the NVE interface. ISSU (ND) is supported for the new L3VNI. This chapter contains the following sections: The auto-derived Route Distinguisher (rd auto) is based on the Type 1 encoding format as described in IETF RFC 4364 section export address. Create the network virtualization endpoint (NVE) interface. VXLAN BGP EVPN - Why VLAN for L3 VNI? Displays both symmetric and asymmetric NVE adjacencies with the corresponding DestInfoIndex. The Cisco Nexus 9000 platform switches use standards conforming UDP port number 4789 for VXLAN encapsulation. Cisco Nexus 9300 with ALE uplink ports does not support resilient hashing. Disables checking the peer AS number during route advertisement. Although the show ip bgp command is available for verifying a BGP configuration, as a best practice, it is preferable to use the show bgp command instead. this timer on standalone border leaf and AnyCast border gateway. options. interface (peering over VXLAN). Use Option 1 for a small number of VNIs. Beginning with Cisco NX-OS Release 10.2(3)F, VXLAN EVPN is supported on Cisco Nexus 9364D-GX2A, and 9348D-GX2A platform switches. Configure route-map to keepthe next-hop unchanged for EVPN routes. member vni The Large MAC address tables. To display the VXLAN BGP EVPN configuration information, enter one of the following commands: show ip arp suppression-cache [detail | summary | vlan and EBGP peering from the VTEP to the external node using a physical interface or subinterfaces is recommended and it is a best The VNI tag is kept inside VXLAN header while the packet is moving in the fabric - this gives you segmentation. The following figure shows an example of asymmetric VNIs. The Configure route-map to Redistribute Host-SVI (Silent Host). rd auto The following are example commands to help the configuration of the number of VM moves in a specific time interval (seconds) The NVE source-interface loopback is required to be present in the default VRF. The command "clear ip arp vrf force-delete" on specific interface normally deletes entries from ARP VXLAN EVPN with downstream VNI supports asymmetric VNI allocation. VNI 50001 on VTEP1 can perform asymmetric VNI with VNI 50002 on VTEP2 and VNI 50003 on VTEP3. {L2 | L3}. Configure distributed gateway virtual MAC address. On Cisco Nexus 9000 PX/TX/PQ switches configured as VXLAN VTEPs, if any ALE 40G port is used as a VXLAN underlay port, configuring 4K scale L2VNI for VXLAN Port VLAN-Mapping VXLAN feature. interface the tenant VRFs, the switches must import the routes from the shared services VRF to the tenant VRF, even though the L3VNI VNI 50001 (on VTEP1) can peer with a loopback in VNI 50002 (on VTEP2 and VTEP3). Secure VXLAN EVPN Multi-Site using CloudSec is supported for sites that are connected through a route server or sites that are connected using full mesh (without a route server). . Add Layer-3 VNIs, one per tenant VRF, to the overlay. The import of a foreign VRFs static configured route-target is supported. Downstream VNI is configured based on route-target export and import. VRF must be configured. 2023 Cisco and/or its affiliates. Configure the mcast group on a per-VNI basis. the asymmetric VNIs at the border gateways. When SVI is enabled on a VTEP (flood and learn, or EVPN) regardless of ARP suppression, make sure that ARP-ETHER TCAM is carved Using an SVI for EBGP peering on a from the VTEP to the External Node requires the VLAN to be local (not VXLAN extended). Default time-interval is 180 seconds. Downstream VNI is not supported prior to Cisco NX-OS Release 9.3(5) and hence traffic forwarding would be (VNI) for the 4-byte numbering field. fabric forwarding anycast-gateway-mac of VNIs. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. NVE and other Layer 3 protocols using the same loopback is not supported. Specify the Service Instance (VNI) for the EVI. For example, if there are 10 Layer 2 trunk interfaces, each with 10 VXLAN VLANs, then the total VXLAN (show fabric forwarding ip local-host-db vrf abc ). For information about VXLAN BGP EVPN scalability, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. 24 hours (this means 5 moves in 180 seconds for 5 times) before the switch permanently locks or freezes the duplicate entry. interface VNI 50001 on VTEP1 can perform asymmetric VNI with VNI 50002 on VTEP2 and VNI 50003 on VTEP3. IP unnumbered in EVPN underlay supports ECMP. Map VLAN to VXLAN VNI to configure Layer 2 VNI under VXLAN VLAN. BGP peering between asymmetric VNI is supported if the VNIs are in a 1:1 relationship but on different VTEPs. Layer 3 VNIs, SVI with Distributed Anycast Gateway, IPv4 and IPv6 host routes in internet-peering mode and the ECMP paths. Beginning with Cisco NX-OS Release 10.2(3)F, the ECMP resilient hashing is supported on the Cisco Nexus 9300-GX2 platform Not using unique route distinguishers across all border nodes is not supported. Multiple Tunnel Encapsulations (VXLAN, GRE and/or MPLS, static label or segment routing) can not co-exist on the same Cisco VXLAN to MPLS (LDP) Gateway is supported on the Cisco Nexus 3600-R and the Cisco Nexus 9500 with R-Series line cards. of Layer-3 protocols. platform switches. You must bind NVE to a loopback address that is separate from other loopback addresses that are required by Layer 3 protocols. PMTUD prevents fragmentation The first custom defined IP VRF uses VRF ID 3. Manually configured route targets are required for EBGP and for asymmetric VNIs. It does so by importing multiple L3VRFs into a single local However, when ARP for same IP is resolved on all ECMP paths, force-deleting Use Option 2 to leverage the simplified configuration mode. BGP peering between asymmetric VNI is not supported if the VNIs are in a 1:N relationship. via FIB/AM/Hmm is always taken irrespective of the order. Configure interface vlan on Border Gateway (BGW). VACLs are not supported on VXLAN de-capsulated traffic in egress direction; See the Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 9.3(x) for other guidelines and limitations for the VXLAN ACL feature. This buffer time also provides time for route-advertisement. It does so by stitching Any existing VRF configuration will not be removed. The range is 1 to 1000 moves. Starting from Cisco NX-OS Release 9.3(5), new VXLAN uplink capabilities are introduced: A physical interface in default VRF is supported as VXLAN uplink. evpn. Add Layer 3 VNI specific mcast group and override the global set configuration. Configure Loopback for local Router ID, PIM, and BGP, Configure Loopback for local VTEP IP, and BGP, Configure interfaces for Spine-leaf interconnect, Enable VXLAN with distributed anycast-gateway using BGP EVPN, Configure route-map to Redistribute Host-SVI (Silent Host), Create overlay VRF VLAN and configure vn-segment, Configure Core-facing SVI for VXLAN routing. router bgp VXLAN with IPv6 in the Underlay (VXLANv6) does not support the following features: Downstream VNI. Disable sending IP redirect messages for IPv4 and IPv6. This defines BGP as the mechanism for host reachability advertisement, global mcast-group The vni is the VNI associated with that particular VRF. In this example, 3000003 is the downstream VNI. It also specifies EVPN route constructions for VXLAN/NVGRE encapsulations and Autonomous System Border Router (ASBR) procedures for multihoming of Network Virtualization Edge (NVE) devices. 4.2 https://tools.ietf.org/html/rfc4364#section-4.2. for Cisco Nexus 9300-GX2 platform switches. Use Option 1 for a small number VXLAN EVPN with downstream VNI is currently not supported with the following feature combinations: Seamless integration of EVPN with L3VPN (MPLS SR). Within Cisco NX-OS, the auto derived The 2-byte numbering field is always derived from the VRF, but results in a different numbering scheme depending on its use Segmentation is one of the basic needs for Multi-Tenancy. Downstream VNI is supported for the following underlay constellations: For downstream VNI with Layer-3 VNI, the underlay can be ingress replication or multicast based.

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