Pre-up bridge fdb add 00:00:00:00:00:33 dev swp3 master static vlan 300 Pre-up bridge fdb add 00:00:00:00:00:22 dev swp2 master static vlan 200 Pre-up bridge fdb add 00:00:00:00:00:11 dev swp1 master static vlan 100 These commands create the following configuration in the /etc/network/interfaces file: auto swp1 This feature is specific to switches on the Broadcom platform only on switches with Mellanox Spectrum ASICs, the input port ACL does not have these issues when learning MAC addresses.Ĭreate a configuration similar to the following, where you associate a port and VLAN with a given MAC address, adding each one to the bridge: net add bridge bridge vids net add bridge bridge pvid net add bridge bridge ports net add bridge pre-up bridge fdb add 00:00:00:00:00:11 dev swp1 master static vlan net add bridge pre-up bridge fdb add 00:00:00:00:00:22 dev swp2 master static vlan net add bridge pre-up bridge fdb add 00:00:00:00:00:33 dev swp3 master static vlan net net commit Because MAC addresses and their port/VLAN associations are known at configuration time, you can create static MAC addresses, then create ingress ACLs to whitelist traffic from these MAC addresses and drop traffic otherwise. To prevent this from happening, Cumulus Linux filters frames before MAC learning occurs. This can be a security or resource problem as the MAC address table has the potential to get filled with bogus MAC addresses a malfunctioning host, network error, loop, or malicious attack on a shared layer 2 platform can create an outage for other hosts if the same MAC address is learned on another port. This is due to how the hardware learns MAC addresses and occurs before the ACL lookup. On Broadcom switches, a MAC address is learned on a bridge regardless of whether or not a received packet is dropped by an ACL. If you are redirected to the main page of the user guide, then this page may have been renamed please search for it there. The current version of the documentation is available If you are using the current version of Cumulus Linux, the content on this page may not be up to date.
Using NCLU to Troubleshoot Your Network Configuration.Monitoring Interfaces and Transceivers Using ethtool.Understanding the cl-support Output File.Network Switch Port LED and Status LED Guidelines.Bidirectional Forwarding Detection - BFD.Unequal Cost Multipath with BGP Link Bandwidth.
Hybrid Cloud Connectivity with QinQ and VXLANs.Integrating Hardware VTEPs with VMware NSX-MH.Integrating Hardware VTEPs with VMware NSX-V.Integrating Hardware VTEPs with Midokura MidoNet and OpenStack.Ethernet Virtual Private Network - EVPN.Virtual Router Redundancy - VRR and VRRP.Spanning Tree and Rapid Spanning Tree - STP.Default Cumulus Linux ACL Configuration.Authentication, Authorization and Accounting.
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