Need some guidance on multicast implementation where we need to enable for video streams. Standard Spine and Leaf setup with multiple vlans both receivers and source are located in Vlan 10 at different location/vtep enabled igmp snooping + querier on all vtep receiver located at different vtep from the source are not receiving any stream Trying to find documentation on what i may missed or if any experts can provide any clues.
Description A private VLAN partitions the Layer 2 broadcast domain of a VLAN into subdomains. It allows isolating the ports on the switch from each other. A subdomain consists of a primary VLAN and one or more secondary VLANs (Private vlans). All secondary VLAN share the same primary VLAN. The secondary VLAN ID differentiates one subdomain from another. The secondary VLANs may either be isolated VLANs or community VLANs. VxLAN with EVPN is used to extend the PVLAN domain to remote locations. Types of VLANs We use below terminologies to describe the type of VLANs in PVLAN domain. Primary VLAN:...
Continue reading →
Description This feature provides the ability to interconnect EVPN VXLAN domains. Domains may or may not be within the same data center network, and the decision to stretch/interconnect a subnet between domains is configurable. The following diagram shows a multi-domain deployment using symmetric IRB. Note that two domains are shown for simplicity, but this solution supports any number of domains. Within domain #1 and domain #2, VTEPs exchange EVPN reachability as normal. Between domains, gateway nodes advertise intra-domain EVPN routes with the gateway inserting itself as the nexthop. From the perspective of a gateway node, there is the local EVPN...
Continue reading →
I have 4 leaf ,2 border leaf ,2 routers as below. There are 3 VRFs in leaf1-4. r1/r2 advertise default route 0/0 to bl1/2. what vrf should I put gi1 in bl1/2? Should I create 3 vrfs in bl1/2 too? or create the 4th vrf? I want to advertise 0/0 to all vrfs so leaf1-4 know how to reach internet. leaf1———– | leaf2———–|spine1———– bl1 gi1———–r1 leaf3———–|spine2———– -bl2 gi1———–r2 leaf4———–|
hey folks, My EVPN is not working through spine switches: leaf1p1#show bgp evpn summary BGP summary information for VRF default Router identifier 100.82.0.11, local AS number 65055 Neighbor Status Codes: m – Under maintenance Description Neighbor V AS MsgRcvd MsgSent InQ OutQ Up/Down State PfxRcd PfxAcc spine1 100.82.0.1 4 65000 0 0 0 0 2d06h Connect spine2 100.82.0.2 4 65000 0 0 0 0 2d06h Connect what could be the issue? Thanks, Omkar
Description This feature allows selecting Differentiated Services Code Point (DSCP) and Traffic Class (TC) values for packets at VTEPs along VXLAN encapsulation and decapsulation directions respectively. DSCP is a field in IP Header and TC is a tag associated with a packet within the switch, both influence the Quality of Service the packet receives. This feature can be enabled via configuration as explained later in this document. In the encapsulation direction, an incoming packet from an edge port is encapsulated with a new IP and VXLAN header before being sent out to a remote VTEP via a core facing port....
Continue reading →
Hi, We have a requirement to extend an isolated PVLAN over the EVPN fabric with Centralized GWs. We wanted to understand what are the best options to block peer to peer communication over EVPN with a centralized GW fabric. I read some previous posts to the forum, but could not validate whether or not PVLAN isolation over VXLAN w/ Centralized Gateway is supported? Can someone confirm? I don’t want to go down to far into a rabbit hole. Thanks.
Description This feature allows a Data Center (DC) operator to incrementally migrate their VXLAN network from IPv4 to IPv6 underlay when using the EVPN control plane. It is meant for brownfield deployments where operators are considering transitioning their VXLAN network to IPv6 underlay but do not want to migrate their whole network at the same time. This feature allows them to migrate parts of their network to IPv6 and leave the rest of the network untouched, without any overlay network partitioning. The incremental transition is achieved using the concept of a dual-stack VTEP. Dual Stack VTEPs and incremental migration A...
Continue reading →
Description This feature allows selecting Differentiated Services Code Point ( DSCP ) and Traffic Class ( TC ) values for packets at VTEPs ( VxLAN Tunnel Endpoint) along VxLan encapsulation and decapsulation directions respectively. DSCP is a field in IP Header and TC is a tag associated with a packet within the switch, both influence the Quality of Service the packet receives. This feature can be enabled via configuration as explained later in this document. In the encapsulation direction, an incoming packet from an edge port is encapsulated with a new IP and VxLan header before being sent out to...
Continue reading →
Description Prior to 4.25.2F, support for BGP PIC was restricted to locally identifiable failures such as link failures. If a remote VTEP went down, this would require action by the IGP and BGP to recompute a new best path traffic destined to affected BGP prefixes originally reachable by the problematic VTEP. This feature introduces support for RFC8971 (BFD for VXLAN) for EVPN learned VTEPs to improve convergence times in these scenarios by tying the liveness detection provided by the BFD sessions into existing BGP PIC support for software fast-failover. Without this feature, until the underlay route providing reachability to the...
Continue reading →
Overview This article provides a brief introduction and configuration of Microsoft NLB with Arista L2LS (without VxLAN) and L3LS VxLAN fabric setup to avoid the most common issues during the deployments. NLB Introduction The Network Load Balancing (NLB) feature distributes traffic across several servers by using the TCP/IP networking protocol. By combining two or more computers that are running applications into a single virtual cluster, NLB provides reliability and performance for web servers and other mission-critical servers. Three modes of operation in NLB Unicast All the NICs assigned to a Microsoft NLB cluster share a common MAC address. The MAC...
Continue reading →
Description The VxLAN VTEP counters feature allows the device to count VxLAN packets received and sent by the device on a per VTEP basis. Specifically, it enables the device to count bytes and packets that are encapsulated and decapsulated as they are passing through. The counters are logically split up in the two VxLAN directions: “encap” counters count packets coming from the edge, encapsulated on the device and directed to the core “decap” counters count packets coming from the core, decapsulated on the device and heading towards the edge. To be able to count VxLAN packets the device has to...
Continue reading →
Hello, I’m testing vEOS with basic flood-and-learn VXLAN topology. Is it possible to assign multiple VXLAN to a single interface? i.e. int Et1: untagged frames are mapped to VNI xxxx tagged frames (vlan 123) are mapped to VNI yyyy tagged frames (vlan 456) are mapped to VNI zzzz so that on the linux end host, the configuration will be something like: eth0: public_ip/32 gw: virtual_gw Vlan.123: private_subnet Vlan.456: private_subnet
Hi All I deploy vxlan that controlled by CVX. However there some warning in config-sanity. below are the output text from “show vxlan config-sanity” Local VTEP Configuration Check WARN VLAN-VNI Map WARN VLAN 915 does not exist VLAN-VNI Map WARN VLAN 916 does not exist VLAN-VNI Map WARN VLAN 920 does not exist Flood List WARN No remote VTEP in VLAN 920 Flood List WARN No remote VTEP in VLAN 915 Flood List WARN No remote VTEP in VLAN 916 Routing WARN Virtual VTEP IP is not configured CVX Configuration Check FAIL CVX Server FAIL No route to 10.9.99.101 MLAG...
Continue reading →
Description In VXLAN networks, broadcast DHCP requests are head-end-replicated to all VXLAN tunnel endpoints (VTEP). If a DHCP relay helper address is configured on more than one VTEP, each such VTEP relays the DHCP request to the configured DHCP server. This could potentially overwhelm the DHCP server as it would receive multiple copies of broadcast packets originated from a host connected to one of the VTEPs. In Figure 1, a DHCP request from DHCP Client1 is head-end-replicated to all VTEPs. DHCP Relay on VTEPs B and C will also forward this request to the DHCP server, resulting in three copies...
Continue reading →
Hi there I made vEOS lab for bgp evpn switchs and i got some error when i made vxlan interface configuration .. i add static vlan vni mapping on that interface like this ! interface Vxlan1 vxlan source-interface Loopback1 vxlan controller-client import vlan none vxlan udp-port 4789 vxlan vlan 1000-2000 vni 1000-2000 ! it works.. then i want to extend of range for more vlan useage i changed like this ! interface Vxlan1 vxlan source-interface Loopback1 vxlan controller-client import vlan none vxlan udp-port 4789 vxlan vlan 11-3200 vni 11-3200 ! Then.. Ethernet interface wont up state it told notconnect...
Continue reading →
Description This feature adds control plane support for inter-subnet forwarding between EVPN networks. This support is achieved by advertising received EVPN IP Prefix routes (Type-5) with next-hop self. VXLAN and MPLS encapsulation are supported, and the encapsulation type used for advertised routes is dependent on the encapsulation type configured for EVPN peering. The following diagram shows an example topology where an EVPN VXLAN network exchanges Type-5 routes with an EVPN MPLS network. Within the EVPN VXLAN and EVPN MPLS network, EVPN routes are exchanged as normal. The L3 gateway functionality is achieved by GW1/2 and GW3/4 advertising received type-5...
Continue reading →
Description In a traditional EVPN VXLAN centralized anycast gateway deployment, multiple L3 VTEPs serve the role of the centralized anycast gateway. In order for hosts to have a consistent ARP binding for any of the individual centralized gateway VTEPs, each VTEP operating as a centralized gateway is configured with a virtual router MAC (VARP MAC), and a virtual VTEP IP (VARP VTEP IP), that is shared between all of the L3 VTEPs operating as centralized gateways. Each centralized gateway VTEP also advertises an EVPN type-3 route for both its primary VTEP IP and VARP VTEP IP, so both IPs end...
Continue reading →
Hi master. My customer has infrastructure Arista 2spine and 4leaf. They want to deploy new firewall Fortigate HA = 2 unit and Cloudvison appliance with MSS features. I’m reading and learn concept mss configuration on cvx and Fortigate, but there is something I’m not understanding about config mss on cvx. Arista Macro Segmentation Service integration with Fortinet Firewalls The link at the top, define command on cvx “type Fortinet fortimanager”My customer asks for me, how about not used /without the fortimanager? It is can used mss features, configuration or not? Please advise and share your experience and link recommended. Thanks Robma bayu
Description Typical WiFi networks utilize a single, central Wireless LAN Controller (WLC) to act as a gateway between the wireless APs and the wired network. Arista differentiates itself by allowing the wireless network to utilize a distributed set of aggregation switches to connect APs to the wired network. This feature allows a decentralized and distributed set of aggregation switches to bridge wireless traffic on behalf of the set of APs configured to VXLAN tunnel all traffic to those aggregation switches, or their “local” APs. This is an extension of the VXLAN VTEP to VTEP bridging feature (https://eos.arista.com/eos-4-22-1f/vxlan-vtep-to-vtep-bridging/) which supports only...
Continue reading →
