About Ulrich Hansen

Ulrich Hansen · 02-23-2014

Hi all,I've observed a weird behavior in a FabricPath topology, running on a mix of N7K's and N55K's. The topology is pretty straightfoward, following the generel best-practice recommendations when implementing a FabricPath network. The network consi...

Ulrich Hansen · 04-18-2013

Hi,Quick question.I know, that when connecting a stp-based network to a FabricPath domain, the leafnode must be configured as the root-bridge. But what is the actual reason behind that requirement?Thanks/Ulrich

Ulrich Hansen · 03-05-2013

Hi all,Here's hoping someone can shed some light onto this. I have the following configured on a 7606 core-router:interface TenGigabitEthernet1/6 mtu 9216 ip address 192.168.103.29 255.255.255.252 ip router isis!router isis net 49.9200.1921.6810.1028...

Ulrich Hansen · 08-13-2012

Hi,I'm looking into a problem, which involves excessive logentries containing the message below:%ARP-3-DUP_VADDR_SRC_IP: arp [4769] Source address of packet received from 0000.0c07.ac00 on Vlan814(port-channel4095) is duplicate of local virtual ip,...

Ulrich Hansen · 02-22-2012

Hi,We recently switched a faulty N5548UP with a replacement and everything went fine, with the exception of one minor thing.We're currently unable to authenticate using tacacs+.When trying to enter the command 'aaa authentication login default group ...

Ulrich Hansen · 11-02-2017

Hi Arthur, I've experienced a similar issue. My setup is slightly different in that it involves FEX'es. But I experienced intermittent packet loss and complete loss, which looked like some kind of routing issue. When ever my DGW was located outside...

Ulrich Hansen · 05-15-2015

Hi,There are limitations, it depends on the linecard in question. Most M-series linecards allows you to allocate interfaces individually and assign them to a vDC. As I recall, only the M132 and M148 are the exception to that rule.The F-series cards u...

Ulrich Hansen · 04-19-2013

Hi Francois.Just what I was looking for. Thank you for your reply.Best regardsUlrichSent from Cisco Technical Support Android App

Ulrich Hansen · 04-18-2013

Found a work around. Configured interface-level L2-authentication and it worked like a charm. Still can't figure out, why the 'domain password' feature was excluded from NXOS./Ulrich

Ulrich Hansen · 10-15-2012

Hey D,I've seen similar issues, only with NetApp. But aside from that, the scenario was the exact same. Throughput on a 10G-link flatlined at around 800-1000Mbps. Initially, this was solved by a driver-upgrade on the ONTAP-controller in the NetApp.Wh...

Member Since	‎05-17-2011 01:43 PM
Date Last Visited	‎10-19-2023 12:07 AM
Posts	41
Total Helpful Votes Received	14

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FabricPath: L2FM-4-L2FM_MAC_MOVE

FabricPath STP root requirement

Nexus 7000 IS-IS domain password

Excessive %ARP-3-DUP_VADDR_SRC_IP: arp [4769] log-entries

N5548UP AAA configuration problem

Re: Packet loss when pinging through ACI

Hi,There are limitations, it

Re:FabricPath STP root requirement

Nexus 7000 IS-IS domain password

Nexus 7010 - 10GE Throughput Capped out at under 200Mb/s