#Path address for mac how to#
This section describes how to configure MAC address learning. This assumes M1/M2 + F1 VDC or M1/M2 + F2E VDC as the spines. M1/M2 MAC Address Table-128, 000 entries this allows you to have 128,000 total network MAC addresses at the spine in a typical design (L2 leaves, 元/SVI spines). These tables have the specified maximum number of table entries:į1/F2/F2e MAC Address Table-16, 000 entries this allows you to have 16,000 local MAC addresses per Nexus 7000 leaf versus 16,000 total network MAC addresses (local and remote) per Nexus 7000 leaf. This is true even when you disable core port learning. This leaves you with the limitation of 16,000 local MAC addresses on any leaf switch that meets the above conditions. In earlier releases, no MAC learning was completed on the core ports (other than broadcast learning on F2). This changed in Release 6.1(2) and later on F2/F2E and changed in Release 6.2(2) and later on F1. In order to enable Proxy MAC Learning, the user must manually disable Remote MAC Learning on the M1/M2 + F1 VDC or M1/M2 + F2E VDC spines and disable FabricPath core port MAC learning on all core port switch-on-chips (SOCs) on the spine and on the core port SOCs of any F2 leaf switches.Īll local MAC addresses learned on all Classic Ethernet (CE) ports are synchronized to all FabricPath core ports. In order for this to occur, you need to enable the Proxy MAC Learning mode.
#Path address for mac series#
In this case, the larger MAC address table of the M Series module can be used to learn up to 128,000 total MAC addresses in the FabricPath domain. In Release 6.2(2) and later, any time the F2e is in the same VDC as an M Series module, the F2e operates in Layer 2 mode only. In this Remote MAC learning mode, you are limited to 16,000 total network MAC addresses in the FabricPath domain due to the F Series MAC table capacity. When there is an M Series module and an F1 or F2e in the same VDC, MAC address learning occurs on the core ports of the F Series module by default. If your network is live, make sure that you understand the potential impact of any command.
All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment.
#Path address for mac software#
The information in this document is based on these software and hardware versions: FabricPath is not supported on the M Series modules, but it can still leverage the MAC table of an M Series module.Ĭisco recommends that you have knowledge of FabricPath basic concepts. This feature allows you to take advantage of the larger MAC table in M Series modules, even in FabricPath.
This document describes the Proxy L2 Learning or Proxy MAC Learning feature added in Release 6.2(2) which allows you to increase the MAC scalability in a FabricPath domain.
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