I have a stack of 4 x 3750-E switches that have been fully populated with 10Gbps X2 fibre modules for 10Gbps SAN connectivity. I want to know if there is a bottleneck on the backplane of the stack, either on the individual switch's backplane or on the StackWise backplane.
Are there any ways to measure the performance using SNMP or otherwise? Can I measure any drops/losses? What are the bandwidth limitations of this backplane?
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Can I measure any drops/losses?
They might show up under the ASIC stats.
What are the bandwidth limitations of this backplane?
Each individual switch has 160 Gbps fabric; unlikely you'll bottleneck there.
The StackWise Plus ring is "64 Gbps", which I believe is really dual 16 Gbps (duplex). It's possible you can exceed the ring's bandwidth, especially between a pair of switch members, but if the bulk of your traffic is between 10g ports, dual 10g on one switch member would likely bottleneck before the ring itself does.
Listen: https://smarturl.it/CCRS8E37Follow us: twitter.com/ciscochampionSometimes, situations require temporary fixes. Sometimes, the network becomes an afterthought in overall office design and planning. In either situation, it may require netw...
In this special edition of the Insider Series, we hear from Cisco partners who have taken steps to be more eco-friendly and sustainable. We hear what inspires ASHRAE, Southwire, Igor, and NTT to create a workplace that is centered around people and how th...
We know that the Type-1 LSA describes the link type connected to the router, the neighbor router and the subnet number.In this topology, assume we dont have a Type-2 LSA, so each router will create its own Type-1 LSA, the Type-1 LSA will describe the neig...
Here are some commonly asked questions and answers to help with your adoption of Cisco DNA Center Wireless. Subscribe to this post to stay up-to-date with the latest Q&A and recommended Ask the Experts (ATXs) sessions to attend.
Q. I have a Cisco Appl...
Why IETF changed and inverted OSPF Type-7 LSA VS Type-5 LSA election In RFC 3101 compared to OLD RFC 1587?Many people learns that the Type-7 LSA and Type-5 election (ON Versus OE routes) depends on RFC 3101 for NSSA published in 2003 and RFC 1587 for NSSA...