802.3ap Backplane Ethernet IEEE Started task force in 2004 and Ratified standard in 2007 Allows for 1GE (single lane) and 10GE (single and 4 lane) over printed circuit boards 10BASE-KR Operates over a single backplane lane Uses same physical layer coding as 10BASE-LA/ER/SR You see "KR" suffix in oder mezzanine card models VN-Link Marketing term How to get traffic from one location to another via a virtual device that doesn't have direct physical connectivity VN-TAG The actual act of populating the Ethernet header (6 bytes) with a tag to denote what vEth/Eth port to send traffic Became 801.1Qbh and finally standardized as 802.1br VN-TAG Format  UCS LAN Connectivity No Local switching on the IOM/FEX in chassis, local server switching on the FI's Fabric Interconnect Modes End Host Mode (NIV) (Default, recommended) Presented to upstream switches as a host, not a switch Ethernet Switching Mode DON'T USE Participates in Spanning-Tree Used to need this for disjointed L2 networks, but that's supported in EHM LAN Connectivity -EHM No upstream MAC learning, only MAC learning is from southbound blades No STP Designated Broadcast/Multicase Uplink ports Single Port as the Broadcast Listener and Receiver All other uplink interfaces that BC/MC heard ----> Go to the bit bucket Reverse Path Forwarding (RPF) Check Is this coming in an uplink port but not on that a downstream blade is pinned to? It will drop it. Deja-Vu Check Have I already seen this packet before? If so DROP IT Applies to BC/MC traffic Pinning Uplink Pinning, Where a vNIC/Vfc and how it transverses the UCS system Static Specify LAN Pin Group's We can still failover over to the other FI if primary fails if configured Dynamic Automatic pinning, if pinned uplink fails, auto failover to uplink on FI, then to the other FI (if VIC supported and configured) Pinning allows all 10GE uplinks to be active, even if not using port channeling UCS LAN TAB Configuration UCS Topology  Step 1 Click on LAN Tab then LAN Uplinks Manager     Finish and Click OK  Now setup the same for Fabric Interconnect B Step 1   Step 3 Assign Port  Ports eth 1/7-10 are part of a PO to N5K1 and N5K2 Click Finish and OKFinal Step Enable all Port-Channels  This configuration should be done previous to the FI configuration. N5K1 Uplinks ports conf t int eth 1/21 - 22 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 channel-group 21 mode active int po21 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 vpc 21 int po22 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 vpc 22 conf t int eth 1/23-24 switchport mode trunk switchport mode trunk allowed vlan 1,100-200,4093 channel-group 22 mode active N5K2 Uplink Ports conf t int eth 1/21-22 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 channel-group 22 mode active int eth 1/23-24 switchport mode trunk switchport trunk allowed vlan 1,100-100,4093 channel-group 21 mode active int po21 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 vpc 21 int po22 switchport mode trunk switchport trunk allowed vlan 1,100-200,4093 vpc 22 show vpc (after you enable the Port-Channels on the FI's)  Create VLAN's Hints: Disabled any unused ports.  You should see license Ok as in this example  Once you create a VLAN you cannot rename a VLAN, you'll have to delete and recreate it. Pre-Planning is very important! |
Blog >