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M4 L2 - Coggle Diagram
M4 L2
Lab 7
Explain
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- DB_EPG will be extended to catalyst 3560 with vlan 31 and IP on cat2560 10.0.2.254
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verify
- DB-VM can ping Switch SVI
- DB-VM can ping other usbnet
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L2 Extension
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of a bridge domain
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connection must be created for the bridge domain. During this process, create a new
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External EPG
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L3 EPG
by using the IP prefix
and mask. One or more external EPGs can be supported for each Layer 3 outside connec
STP TCN
BPDU are flooded within a specific VLAN encapsulation (in many cases, an EPG corresponds to a VLAN
ACI does intercept the STP TCN frame so that it can flush out MAC address entries to avoid blackholing traffic when topology change
Upon reeive BPDU TCN frame, the APIC flushes the MAC addresses for the corresponding EPG that experiene topology change
solution
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Alternatively, you can turn on the unknown unicast flooding to reduce the traffic disruption during an STP topology change.
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loop detection sl
MCP loop detection
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Config involve 2 steps
Global Policies section of the
Fabric > Access Policies tab,
■ Key: The key to uniquely identify MCP packets within the fabric
■ Initial Delay: The delay time before MCP begins taking action
-Loop Detect Multiplication Factor: The number of continuous packets that a port must receive before delare a loop
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Static path mode
Trunk, 8021p and access
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from the host is tagged with a VLAN ID. Multiple EPGs can be statically bound to the same interface as long as the encapsulation VLAN/
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vlan vlan_ID command, with this option you can assign the interface
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bare-metal server whose network interface cards (NICs) typically generate untagged traffic. A port can have only one EPG statically bound to
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native vlan vlan_ID command), but, unlike the untagged mode, 802.1P
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