- Community Home
- >
- Servers and Operating Systems
- >
- HPE BladeSystem
- >
- BladeSystem - General
- >
- Basic Network Fabric Questions about a C7000 Blade...
BladeSystem - General
1753667
Members
5712
Online
108799
Solutions
Forums
Categories
Company
Local Language
юдл
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
юдл
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Go to solution
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-05-2008 10:50 AM
тАО08-05-2008 10:50 AM
Hello,
I am assisting a client who owns a C7000 chassis and BL460c half height server blades. They also have 2 GB2ec switches installed.
My first question is to make sure that I have a correct understanding of how the ethernet fabric hooks together.
First, as far as port numbering goes, I assume that ports 1-16 of a GB2ec correlate to blade servers 1-16, and that the external ports are labeled as 17-21?
Assuming that the chassis has 16 BL460c's and one GB2ec installed: All 16 NIC-1 ports and the 5 external ports of the GB2ec "see" each other (at layer-2), is that correct? So if I plug one of the external ports of the GB2ec into the core switch stack, all 16 servers are "on the LAN"?
If that assumption is correct, let's say that we plug in the second GB2ec. Now all NIC-2 ports of the servers "see" each other. But, they are completely separated from the other GB2ec switch, correct? So if I plug both GB2ec's into the core switch stack, no bridge loop would occur?
Again, assuming that is correct, can I make ports on the two GB2ec switch "see" each other? For example, can I take port-10 of GB2ec-1 and port-10 of GB2ec-2 and port-17 of GB2ec-1 and put them into a VLAN were they all "see" each other? Or is there another (better) way to cross connect ports from the two switches?
Thanks much for all replies.
Bryan Hunt
I am assisting a client who owns a C7000 chassis and BL460c half height server blades. They also have 2 GB2ec switches installed.
My first question is to make sure that I have a correct understanding of how the ethernet fabric hooks together.
First, as far as port numbering goes, I assume that ports 1-16 of a GB2ec correlate to blade servers 1-16, and that the external ports are labeled as 17-21?
Assuming that the chassis has 16 BL460c's and one GB2ec installed: All 16 NIC-1 ports and the 5 external ports of the GB2ec "see" each other (at layer-2), is that correct? So if I plug one of the external ports of the GB2ec into the core switch stack, all 16 servers are "on the LAN"?
If that assumption is correct, let's say that we plug in the second GB2ec. Now all NIC-2 ports of the servers "see" each other. But, they are completely separated from the other GB2ec switch, correct? So if I plug both GB2ec's into the core switch stack, no bridge loop would occur?
Again, assuming that is correct, can I make ports on the two GB2ec switch "see" each other? For example, can I take port-10 of GB2ec-1 and port-10 of GB2ec-2 and port-17 of GB2ec-1 and put them into a VLAN were they all "see" each other? Or is there another (better) way to cross connect ports from the two switches?
Thanks much for all replies.
Bryan Hunt
Solved! Go to Solution.
2 REPLIES 2
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-05-2008 12:30 PM
тАО08-05-2008 12:30 PM
Solution
Hi,
I'm not a networking expert, but as much as it concerns blades:
1. ports 1-16 of a GB2ec correlate to blade servers
ports 17 & 18 are the crosslinks between redundant GBE2s, port 19 is the port to onboard administrator.
Ports 20-24 are the uplink ports.
"Assuming that the chassis has 16 BL460c's and one GB2ec installed: All 16 NIC-1 ports and the 5 external ports of the GB2ec "see" each other (at layer-2), is that correct?"
- YES
"If that assumption...." - yes, by the default the crosslinks(the internal connection between both switches -17&18 is disabled by default)
"Again, assuming " - enabling ports 17&18, which are to be used for a 2-port trunk between both switches
or you can VLAN them at OS & Switch level.
for more detailed info and examples you can check :
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00701973/c00701973.pdf?jumpid=reg_R1002_USEN
page 48 abou VLANs
30 - ports
Regards
I'm not a networking expert, but as much as it concerns blades:
1. ports 1-16 of a GB2ec correlate to blade servers
ports 17 & 18 are the crosslinks between redundant GBE2s, port 19 is the port to onboard administrator.
Ports 20-24 are the uplink ports.
"Assuming that the chassis has 16 BL460c's and one GB2ec installed: All 16 NIC-1 ports and the 5 external ports of the GB2ec "see" each other (at layer-2), is that correct?"
- YES
"If that assumption...." - yes, by the default the crosslinks(the internal connection between both switches -17&18 is disabled by default)
"Again, assuming " - enabling ports 17&18, which are to be used for a 2-port trunk between both switches
or you can VLAN them at OS & Switch level.
for more detailed info and examples you can check :
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00701973/c00701973.pdf?jumpid=reg_R1002_USEN
page 48 abou VLANs
30 - ports
Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-05-2008 12:50 PM
тАО08-05-2008 12:50 PM
Re: Basic Network Fabric Questions about a C7000 BladeSystem
Blazhev,
That is *exactly* the document I needed, thanks much.
Am I supposed to award points in this forum? What is reasonable?
Thanks again for your help.
Bryan Hunt
That is *exactly* the document I needed, thanks much.
Am I supposed to award points in this forum? What is reasonable?
Thanks again for your help.
Bryan Hunt
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP