For traditional, virtualized, unified, and high-performance computing (HPC) environments, it offers a long list of IT and business advantages, including.The Nexus 5548UP has the 32 ports unified ports, meaning that the ports can run 110 Gbps or they can run 8421 Gbps native FC or mix between both.
All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. Cisco Nexus 5548 Specs Series And WasVSS was first available in the Cisco 6500 series and was later introduced to the Cisco 4500, the newer 4500X, 6800 Series switches and the Catalyst 3850 (April 2017 onwards). Features Advantages, Design Guidelines, Configuration, Failure Scenarios, Troubleshooting, VSS vs vPC. The endpoint can be a switch, server, router or any other device such as Firewall or Load Balancers that support the link aggregation technology ( EtherChannel ). Furthermore, understanding vPC failure scenarios such as vPC Peer-Link failure, vPC Peer Keepalive Link failure, vPC Peer Switch failure, vPC Dual Active or Split Brain failure will help plan ahead to minimise network service disruption in the event of a link or device failure. In addition, virtual Port Channel was introduced in NX-OS version 4.1(4) and is included in the base NX-OS software license. This technology is supported on the Nexus 9000, 7000, 5000 and 3000 Series. You can also refer to our Introduction to Nexus Family Nexus OS vs Catalyst IOS for an introduction study on the Nexus Series switches family. Finally, a Quiz is included at the last section and we are waiting for your comments and answers. The peer switches run a control protocol that synchronizes the state of the port channel and maintains it. In particular, the vPC belongs to the Multichassis EtherChannel ( MEC ) family of technology and provides the following main technical benefits. It is not possible to configure vPC on a pair of switches consisting of a Nexus 7000 series and a Nexus 5000 series switch. Utilizing Ethernet ports from two different modules will improve the availability and redundancy should a module fail. Finally the use of 40G or 100G interfaces for vPC links will increase the bandwidth of the vPC Peer-Link. In particular, each VDC for the Nexus 7000 Series switches requires its own vPC peer and keepalive links and cannot be shared among the VDCs. It is recommended that routing adjacencies are established on separate routed links. One acts as the Primary and the other as a Secondary, which allows other devices to connect to the two chassis using Multi-Channel Ethernet ( MEC ). This link is used to synchronize the state between vPC peer devices via vPC control packets which creates the illusion of a single control plane. ![]() Finally, in the case of a vPC device that is also a Layer 3 switch, the peer-link carries Hot Standby Router Protocol ( HSRP ) packets. In particular, it helps the vPC switch to determine whether the peer link itself has failed or whether the vPC peer is down. No data or synchronization traffic is sent over the vPC Peer Keepalive Link only IPUDP packets on port 3200 to indicate that the originating switch is operating and running vPC. The default timers are an interval of 1 second with a timeout of 5 seconds. It utilizes the peer link and does not require any configuration by the administrators. The Cisco Fabric Services over Ethernet protocol is used to perform compatibility checks in order to validate the compatibility of vPC member ports to form the channel, to synchronize the IGMP snooping status, to monitor the status of the vPC member ports, and to synchronize the Address Resolution Protocol (ARP) table.
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