• Tag : 4.23.2F


Management SFP port configuration

Description This article describes speed configuration for the management SFP port. Platform compatibility DCS-7300-SUP2 DCS-7300-SUP2-D DCS-7368-SUP DCS-7368-SUP-D DCS-7800-SUP Configuration The user may configure the management SFP port’s speed to either “auto” or “forced 1000full”. The default value is “auto”. switch(config)#interface ma1/2 switch(config-if-Ma1/2)#speed forced 1000full Show Commands The port’s configuration settings can be seen using the following command. switch(config-if-Ma1/2)#show interface ma1/2 status Port Name Status Vlan Duplex Speed Type Flags Encapsulation Ma1/2 connected routed full 1G 1000BASE-T Limitations The speed “forced 1000half” is not supported. Attempts to set the speed to this value will result in a silent failure. The port’s...
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Support for standalone link training

Description When a high speed serial communication link is established, the two ends communicate with each other over a “channel”.  This channel typically consists of traces on a circuit board, a medium over which the link is carried (for example, a copper cable), and connectors which connect the two ends together.  Each element in the channel doesn’t transmit the signal perfectly – they each degrade the signal a little bit so it looks less like it did when it was first transmitted. By the time the signal gets to the destination receiver, it typically looks nothing like the signal that...
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FEC traffic analyzer

Description The FEC traffic analyzer is designed to estimate the performance of FEC layer, identify error statistics, and the source of correlated errors on physical interfaces. The FEC traffic analyzer provides two ways to show link quality. pre-FEC bit error rate: Bit error rate calculated periodically from the count of bits corrected by the FEC layer. FEC histogram: This shows the distribution of symbol corrections per FEC corrected codeword. Platform Compatibility Support of the FEC traffic analyzer feature depends on the capabilities of the hardware and the speed of the port The following products support this feature when configured for...
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Default QSFP mode support

Description QSFP+ transceiver supports 40G and 4x10G. This feature provides support for changing the default QSFP mode between 40G and 4x10G on all ports with QSFP+ transceivers. Platform compatibility This feature is supported on OSFP ports (with OSFP-QSFP-Adapter), QSFP-DD ports, and straight-through QSFP100 ports. QSFP100 ports with external PHY do not support this feature. The following ports support this feature: DCS-7280CR3-32P4 – Ports 33-36 DCS-7280DR3-32P4 – Ports 33-36 DCS-7280PR3 – all ports DCS-7280DR4 – all ports 7500R3-36CQ – Ports 13-24 7500R3-24P-LC – all ports 7800R3-36P-LC – all ports In addition to above platforms, this feature is supported on following platforms...
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EVPN Internetworking with IPVPN

Description This feature adds control-plane support for inter-subnet forwarding between EVPN and IPVPN networks. It also introduces a new BGP path-attribute, D-PATH, that may be used for loop prevention when internetworking between EVPN and IPVPN domains. The supported transport type for IPVPN networks is MPLS, while EVPN networks may use MPLS or VXLAN. The following diagram shows an example topology where a DC EVPN-VXLAN cloud is connected to an MPLS-VPN cloud via border leaf nodes peering with both EVPN and IPVPN. The MPLS-VPN cloud is then connected to a DC EVPN-MPLS cloud, where the border leaf nodes peer with both...
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EVPN VxLAN control plane support for OpenStack

Description This feature enables support for an EVPN VxLAN control plane in conjunction with Arista’s OpenStack ML2 plugin for automated network provisioning. When utilizing this feature: VCS (Vxlan Controller Service) on CVX (CloudVision eXchange) will be responsible for dynamically provisioning VLAN to VNI mappings on switches based on OpenStack configuration The OpenStack service on CVX will be responsible for dynamically provisioning VLANs and allowing them on applicable trunk switchports on switches EVPN will be responsible for distributing and configuring flood lists based on  EVPN type 3 IMET routes and host reachability based on type 2 MAC-IP routes This feature is...
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Port ACLs with User-Defined Fields

Description This article describes the support for specifying User-Defined Fields( UDF ) in Port ACLs including IPv4, IPv6, and MAC ACL. The purpose of the User-Defined Fields feature is to permit or deny packets based on custom offset pattern matching. User-Defined Fields, or UDFs, are defined as part of an access-list filter and are comprised of an offset, length, pattern match and mask. This describes a single portion of any incoming packet to match the provided value upon.  UDFs may also be defined via aliases. Aliases are a way to save a UDF configuration for reuse in multiple access-lists and/or...
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