But i am unable to see any traffic on the Linux machine when i do tcpdump -i eth1 .For basic troubleshooting i removed all sub-interface vlan configured in the PC and it just has eth0 (mgmt) & eth1 ... I have also confirmed that the eth1 is connected on GigabitEthernet 2/14
of CAT6k .. Also removed the vlan filter , but the result same , No Captures seen on the PC !!
I have tried basic ping from ACE to my rserver , Since this needs to go through CAT6k , i don't see it on captures..
The configuration for SPAN on 6500 is perfectly fine. Not sure about TCP dump on linux. Did you try with a PC running wireshark and see if it captures any traffic? Did you try and send any other traffic than ICMP?Any traffic to and fro should be captured on this. There is no problem with configuration.
Hey Guys ... Thanks for your time.. I do get the captures now.. But its taking a huge time i.e after 15 to 20 min after the actual traffic passes thro the ACE .... Not sure of the reason , I even tried reloading the box , Which now helps a bit..
However i am seeing vlan tag on the captures .. Is it my NIC adapter removes the tag while we do span capturing ????
@ Santhosh .. Thanks for the link , i hope by default the linux NIC wok in promiscuous mode , but not sure why i am seeing the vlan tags after the capture....
Let me know if we need to enable specific command in the linux box or any config changes on the port configuration on CAT6k .. I have made as trunk with encap dot1q ..
I do get the captures now.. But its taking a huge time i.e after 15 to 20 min after the actual traffic passes thro the ACE .... Not sure of the reason , I even tried reloading the box , Which now helps a bit..
That is definitely unusual.
Would you be able to install wireshark on that machine and check if it can sniff the traffic? I'm not too familiar with *nux so I cannot be of much help there.
Could you try without the VLAN filter command just to test?
The switch configuration looks good, you would not need any additional commands on the switch.
It could very well be. Santhosh has pasted above two links which you can refer for configuring NIC's for intel chipsets. Not sure which chipset linux machine has or if there is any other setting. May be a quick search in Linux forums throw up something.
Topology & Design:
Two ACI fabrics
Stretching VLANs using OTV
Both fabrics are advertising BD subnets into same routing domain
Some BDs(or say VLANs) are stretched, but some are not.
Endpoints can move betwee...
VMware Trunk Port Group is supported from ACI version 2.1
VMM integration must be configured properly
ASA device package must be uploaded to APIC
ASAv version must be compatible with ACI and device package version
Topology &Design:Traffic flow within same fabric:Endpoint moves to Fabric-2Bounce Entry Times OutTraffic Black-holedSummarySolutionAppendix:
In the Previous articles of ACI Automation, we are using Postman/Newman a...