- Community Home
- >
- Networking
- >
- Legacy
- >
- Switches, Hubs, Modems
- >
- VLAN not functioning as expected.
Switches, Hubs, and Modems
1753488
Members
4398
Online
108794
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
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
тАО01-26-2009 08:14 PM
тАО01-26-2009 08:14 PM
VLAN not functioning as expected.
First post on the HP forums folks so be gentle with me ;-)
Right we currently have 3 HP switches in house that replaced our aging Cisco 2950 and 3550 switches. Our core swwtch is a 5412zl and our 2 others are 5406zl. I reckon that the VLAN we are having an issue with resides on the core switch.
Below is the config for the VLAN
vlan 100
name "VLAN100"
untagged A1-A3
no ip address
exit
Now the 3 ports that are used for the VLAN house a Sonciwall firewall the uses 2 ports as it is in hardware failover mode and a Riverbed Steelhead appliance.
Now when these devices are connected to the HP switch i cannot ping past the Riverbed appliance. If i change the ports to be tagged rather than untagged then all seems to function normally but the way we have our network configured, as per the attached Visio drawing is that it shouldn't be able to.
Can anyone shed any light as to why we can't get this to work??
Right we currently have 3 HP switches in house that replaced our aging Cisco 2950 and 3550 switches. Our core swwtch is a 5412zl and our 2 others are 5406zl. I reckon that the VLAN we are having an issue with resides on the core switch.
Below is the config for the VLAN
vlan 100
name "VLAN100"
untagged A1-A3
no ip address
exit
Now the 3 ports that are used for the VLAN house a Sonciwall firewall the uses 2 ports as it is in hardware failover mode and a Riverbed Steelhead appliance.
Now when these devices are connected to the HP switch i cannot ping past the Riverbed appliance. If i change the ports to be tagged rather than untagged then all seems to function normally but the way we have our network configured, as per the attached Visio drawing is that it shouldn't be able to.
Can anyone shed any light as to why we can't get this to work??
2 REPLIES 2
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО01-26-2009 11:43 PM
тАО01-26-2009 11:43 PM
Re: VLAN not functioning as expected.
Hello and welcome to the forums.
As to your question on the tagged/untagged status I can not tell from your visio drawing what the correct mode should be, but the tagging status really only depends on the other side of the link.
That is, is the other device 802.1Q compatible and does it expect to see frames from a certain vlan to enter with the 802.1Q tag attached or not.
If you get your configuration to work with tagging the switch ports than it could mean that your devices is VLAN aware and also does tag their outgoing frames.
Does that make any sense to you?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО01-28-2009 12:11 AM
тАО01-28-2009 12:11 AM
Re: VLAN not functioning as expected.
Like Rick says,
for vlan tagging both sides of the link better be matched (no different from speed/duplex).
when an untagged packet comes in the port. it's internally added a tag. Then within the switch it is propagated within vlan100.
- to tagged ports for vlan100 (packet is forwarded with tag)
- to untagged ports for vlan100 (tag is stripped before it's sent out)
when a tagged packet for vlan-100 is comming into this port it may also be accepted and forwarded.
for tagged packets with another vlan-number than 100 other lines in the switch config need to be examined.
But it's not really clear what's the issue here.
>>>Now when these devices are connected to the HP switch i cannot ping past the Riverbed appliance<<<
seems allright to me!
You may need to look in the appliance config to see if this is allowed, not in the vlan config.
>>>I reckon that the VLAN we are having an issue with resides on the core switch.
<<<
I assume the three devices in question connected to this coreswitch?
for vlan tagging both sides of the link better be matched (no different from speed/duplex).
when an untagged packet comes in the port. it's internally added a tag. Then within the switch it is propagated within vlan100.
- to tagged ports for vlan100 (packet is forwarded with tag)
- to untagged ports for vlan100 (tag is stripped before it's sent out)
when a tagged packet for vlan-100 is comming into this port it may also be accepted and forwarded.
for tagged packets with another vlan-number than 100 other lines in the switch config need to be examined.
But it's not really clear what's the issue here.
>>>Now when these devices are connected to the HP switch i cannot ping past the Riverbed appliance<<<
seems allright to me!
You may need to look in the appliance config to see if this is allowed, not in the vlan config.
>>>I reckon that the VLAN we are having an issue with resides on the core switch.
<<<
I assume the three devices in question connected to this coreswitch?
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