What is AsyncOS?

When it comes to Cisco's networking products, the default operating system comes into our mind is Cisco IOS, a very popular OS among the networking professionals, however, when it comes to Cisco Email Security Appliance (ESA),better known as Cisco IronPort appliances the OS changes. The Cisco...

A review for “Email Security with Cisco IronPort”

Being in Gartner Magic quadrant is sufficient to succeed?

Currently, we are testing some of the network and application monitoring solutions, so that we can go with a product, which serves our needs. We approached many vendors and got a good response from them, and some even offered to do a proof of concept. Which we opted  happily, and in fact it helped...

What is the error “Signature Auto Update Fails with Error HTTP connection failed [1, 110] “ in Cisco IPS sensors?

  Recently, I configured our Cisco IPS Sensors modules SSM-40 installed in the Cisco ASA 5540 and Cisco IPS 4270 sensor to auto update the signature behind our Blue Coat Proxy SG, upon configuration, I discovered that the auto updates failed. When I tried to know status by using Cisco IOS...

How to preserve encapsulation across SPAN?

While any one of you are trying to analyze a SPAN or RSPAN traffic you may notice that certain layer 2 frames are missing. Usually SPAN/RSPAN ignores layer 2 traffic like CDP, spanning-tree BPUDs, VTP, DTP and PagP frames.  However, these traffic types can be forwarded along with the normal SPAN...

How to enable special http inspection for Cisco ASA firewall

  We had a special request from one of our clinicians; he was trying to access one of the health care portal with the URL http://apps.xxx.xx.sa:2000/. While he was trying to access the same portal from his office it was not accessible, whereas...

Cisco Voice Codec Bandwidth Calculator, a handy tool to calculate voice bandwidth requirements.

While designing an IP Telephone Network we need to be aware of few important things such as bandwidth requirements, delay and QOS of schemes. The most important thing while designing an ITP network is the proper capacity planning. Within capacity planning, bandwidth calculation is an important...

The layer 3 link between Nexus 7010 and Cisco 6506 E Switches is frequently going down part 2

June 13, 2011  5:12 AM

The layer 3 link between Nexus 7010 and Cisco 6506 E Switches is frequently going down.

Posted by: Yasir Irfan
Cisco Catalyst 6506 E Switches, Cisco Nexus 7010 Series Switch, Cisco Switches, Cisco Tips, fiber patch cord, Network Technologies and Trends, Nexus 7000 troubleshooting, Nexus 7010, operational Receive Flow Contol state changed to off, operational speed changed to 10 Gbps 2011 Jun 12 09:05:49 VDC-Admin-CO01-, operational Transmit Flow Contol state changed to off, The layer 3 link between Nexus 7010 and Cisco 6506 E Switches is frequently going down., VDC-Admin-CO01-MB-1256-001 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/17 is down (Link failure), VDC-Admin-CO01-MB-1256-001 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/17, VDC-Admin-CO01-MB-1256-001 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/17, VDC-Admin-CO01-MB-1256-001 %ETHPORT-5-IF_UP: Interface Ethernet1/17 is up in Layer3, VDC-Admin-CO01-MB-1256-001 %ETHPORT-5-SPEED: Interface Ethernet1/17

We have Cisco Nexus 7010 working as a Core and Aggregation Switch. We have created two VDC one for Core and other one for Aggregation. One of Cisco 6506 E Switches connected as a distribution switch from Nexus 7010 Core Switch. Things were normal since its installation, suddenly one night we...

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May 31, 2011  5:29 AM

Thanks to Cisco Press User Group

Posted by: Yasir Irfan
CCNA, CCNA Security, CCNP, CCNP Switch, Cisco Certifications, Cisco networking technologies, Cisco News, Cisco Press, Cisco Press materials, Cisco Press User Group, Cisco Systems, leadership skills, Network Technologies and Trends, The Cisco Press Cisco User Group Program

Cisco Press continues to carry the motto of "Customer Satisfaction & support" of Cisco Systems, yeah you might be thinking being a publishing company how are they taking care of thousands of Certification aspirer. Cisco Press are helping hands by having a program called

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