About krish1986

krish1986 · ‎06-29-2018

When switch receives unknown unicast, it will flood it out all ports except the receiving port of the frame. 1. How this is happening? 2. This will flood with a destination mac of FF:FF:FF:FF:FF:FF ? 3. And packet will not flood to the port where the unknown unicast packet come from? How this is achieved?

krish1986 · ‎06-13-2018

Hi all, We can do policing/shaping at ingress traffic. If the traffic is already rate limited/shaped at ingress, then what’s the use of WRED- Weighted random early detection ? How the congestion can happen, because already the traffic flow is policed. Per flow, 1 queue also will be there. Then what may be the reason for congestion? Thank you,

krish1986 · ‎06-13-2018

Hi all, The scenario is, in an L3 switch the inter-vlan ip traffic should be passed. Suppose pc1 connected to port1 ipvlan subinterface (10.1.1.1/24, vlan id 10 configured). Pc2 is connected to port2 ipvlan sub interface(20.1.1.1/24, vlan 20). And some ports are free, which are part of a plane Ethernet interface(no vlan enabled). Suppose the Arp table in the L3 switch does not contain ip-mac mapping for pc2. And we want to send traffic from pc1 to pc2 also. How arp will be broadcasted? Will the arp request will go to all ports of the switch or only vlan enabled ports? Thank you

krish1986 · ‎06-06-2018

So is there any solution for this (I mean to avoid the flooding) ? Can we statically add an entry in the mac table for both Switch A and switch B to avoid the flooding of packets?

krish1986 · ‎06-03-2018

I have 2 switches connected each other (switch A and switch B). Switch A and B is connected to Ixia also. Assume that, I send l2 Ethernet traffic from Ixia to Switch A, and my destination mac is for Switch B(some port). Traffic is only only unidirectional (switch a-> switch b). So here the dest mac will not be there in Switch A cam table, so it will flood. After flooding what will happen? How the packet from ixia reaches the l2 interface on Switch B? Or switch A will always flood the packets ?

Date Registered	‎06-03-2018 10:32 PM
Date Last Visited	‎07-04-2018 12:05 AM
Total Messages Posted	5

Unknown unicast and flooding

qos - How traffic congestion happens?

Arp resolve in inter-vlan

Re: L2(Ethernet) unknown unicast frame

L2(Ethernet) unknown unicast frame