EOS 4.15.2F TOI

Starting EOS release 4.15.2F, the ability to re number front panel ports of 7050QX 32S is supported.

This feature enables user to modify QoS parameters for SVI traffic (L3 VLAN) based on ACL classification. The QoS

The active active neutron controller support in CVX enables the deployment of highly available neutron service with

This article describes changes to the platform command 'show platform fm6000 agileports'. Earlier this command was

This feature detects whether a given EOS image is MLAG ISSU compatible with the currently running version on a switch.

BGP additional paths is an enhancement that allows a BGP router to advertise and receive multiple distinct paths for

The BGP idle restart interval feature allows an idle BGP peer session to automatically restart after a configurable

BGP Non Stop Forwarding (NSF) aims to minimize the traffic loss when the the following scenarios occur:

Nexthop Groups is a feature that allows users to manually configure a set of nexthops by specifying their nexthop

The BGP selective route download feature allows learning and advertising BGP prefixes without installing them in

BGP sFlow export is to add BGP route information in sFlow sample packet is the destination IP matches a BGP route. Prior

Bidirectional Protocol Independent Multicast (PIM) allows routers to build trees to deliver multicast traffic

Configurable TPID enables TPID to be configured per switchport (default TPID on switchport is 0x8100) on

This feature optimizes the utilization of hardware resources by sharing tcam entries for a group of SVIs on which an

The 7250X and 7300 series use an optimized internal CLOS design with multiple port ASICs interconnected via Fabric

Fallback PBR policy enables an alternate policy to be active when PBR policy attached to an interface is being

When a user configures IPv6 ACLs, by default, the system automatically  includes two additional rules : a default

By default,  inner IP header of a GRE packet is used for LAG hashing. With this feature, LAGs can hash GRE traffic

Hardware Table Capacity Monitoring is a new feature to keep track of the capacity and utilization of various hardware forwarding resources and generate alerts/syslogs when the utilization exceeds a threshold value. Users can keep track of the current usage statistics using a single show command, and also configure thresholds on a per-resource basis, to be notified about any high-utilization upfront, before reaching any resource limits. The Main use-case would be for troubleshooting in overflow situations and avoid overflows altogether by taking corrective actions on high utilization.

Arista switches enable high precision time distribution directly in the data path using IEEE1588 Precision Time

IP Source Guard (IPSG) is a security feature that can help prevent IP spoofing attacks. It filters inbound IP packets

With this feature, IP packets matching a static Nexthop Group route can be encapsulated within an IP in IP tunnel and

Nexthop groups in EOS currently only support IPv4 entries and only IPv4 routes can point to nexthop groups. This

IPv6 routes of certain prefix lengths can be optimized for enhanced route scale on R/R2 series platforms. This TOI explains the usage of these optimizations.

Bidirectional Forwarding Detection(BFD) is a low overhead protocol designed to provide rapid detection of

The difference between the two forms of authentication is in the level of security provided. In case of clear text authentication, the password is specified as text in the authentication TLV, making it possible for an attacker to break the authentication by sniffing and capturing IS-IS PDUs on the network.

By default if there's a hostname configured on the switch, it is used as the IS IS hostname. It is also possible to

An IS IS router can be configured as Level 1 2 which can form adjacencies and exchange routing information with both

IS IS Multi Topology support enables an IS IS router to compute a separate topology for IPv4 and IPv6 links in the

Level 1 2 routers set attached bit in their Level 1 LSPs to indicate their reachability to the rest of the network. A

SPF Timers can be used in IS-IS to throttle the frequency of shortest-path-first (SPF) computations. In networks with a lot of churn, using these timers will help in containing the effect of network disruptions arising out of frequent SPF runs.

This feature adds Intermediate System to Intermediate System (IS IS) support for IP version 6 (IPv6) address family

This feature extends the IS IS set overload bit command to support wait for BGP option. In scenarios

Sub interface counters provide ability to count packets and bytes incoming and outgoing on L3 sub interfaces. This

Arista switches use the hashing algorithm to load balance traffic among LAG (Link Aggregation Group) members

LANZ is the EOS Latency and congestion ANalyZer. On DCS-7280, DCS-7020, DCS-7500 and DCS-7800 series, it allows monitoring congestion and transmit latencies on both front panel and CPU ports.

Leaf Smart System Upgrade (SSU) provides the ability to upgrade the EOS image with minimal traffic disruption.Note: It is possible that SSU shutdown and bootup are not supported in the same image. If a product has shutdown support in image A and bootup support in a later image B, then SSU upgrade cannot be performed from image A to any images earlier than image B, including image A itself. However, upgrading from image A to image B onwards is allowed.

Maintenance mode is a framework to allow for the easy removal of elements of a switch or the entire switch from

In an MLAG setup, routing on a switch (MLAG peer) is possible using its own bridge/system MAC, VARP MAC or VRRP MAC. When a peer receives an IP packet with destination MAC set to one of the aforementioned MACs, the packet gets routed if the hardware has enough information to route the packet. Before introducing this feature, if the destination MAC is peer’s bridge MAC, the packet is L2 bridged on the peer-link and the routing takes place on the peer. This behavior to use the peer-link to bridge the L3 traffic to the peer is undesirable especially when the MLAG peers can route the packets themselves.

MLAG currently checks for basic MLAG configuration to be consistent (e.g. domain id) before formation with the peer.

The nexthop group feature allows users to manually configure a set of tunnels. Nexthop group counters provide the ability to count packets and bytes associated with each tunnel nexthop, irrespective of the number of times it appears in one or more nexthop groups. In other words, if a nexthop group entry shares a tunnel resource with another entry, they will also share the same counter.

Action TTL decrement in an OpenFlow flow. OpenFlow 1.3 Group support on DCS 7010 series. Clearing

In previous releases of EOS, Stub area and NSSA area types were supported for OSPFv3, but without support of the "no

Policy Based Routing (PBR) provides the flexibility of routing according to custom defined policies in a way that

This feature enables detection of egress queues that are unable to transmit packets for prolonged periods of time

PIM VRF feature adds VRF support to these existing multicast protocols: PIM SM, PIM BSR, IGMP and MSDP.

This feature makes ARP and ND packets use a higher priority output queue when software forwarded on the switch. Doing

Forward Error Correction (FEC) is required with some QSFP100 media to achieve error free operation of the link when

Some data plane features on some switch platforms may require packets to be recirculated through the switch chip in

This feature allows routing traffic across two Vrf domains on the same switch using an external loopback cable