Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
*Spencer Ryan* | Senior Systems Administrator | sryan@arbor.net *Arbor Networks* +1.734.794.5033 (d) | +1.734.846.2053 (m) www.arbornetworks.com
On 4/28/15 2:12 PM, Spencer Ryan wrote:
Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
On cisco gear, you can look at setting 'bandwidth <whatever>' on the interface itself. In most cases this won't change actual network functionality. This is used by things like EIGRP in its routing metric work, so you'll want to be sure that isn't an issue first.
It's not Cisco gear, which is why I specifically said I couldn't change the SNMP response.
*Spencer Ryan* | Senior Systems Administrator | sryan@arbor.net *Arbor Networks* +1.734.794.5033 (d) | +1.734.846.2053 (m) www.arbornetworks.com
On Tue, Apr 28, 2015 at 2:29 PM, Kevin Phair kevin@nyi.net wrote:
On 4/28/15 2:12 PM, Spencer Ryan wrote:
Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
On cisco gear, you can look at setting 'bandwidth <whatever>' on the interface itself. In most cases this won't change actual network functionality. This is used by things like EIGRP in its routing metric work, so you'll want to be sure that isn't an issue first.
-- //////NYI Kevin Phair kevin@nyi.net O: (212)269-1999 x 2409 C: (914)689-1928 Website: https://www.nyi.net Helpdesk: https://my.nyi.net Status Updates: https://status.nyi.net _______________________________________________ observium mailing list observium@observium.org http://postman.memetic.org/cgi-bin/mailman/listinfo/observium
I was going to suggest likewise, but that part that says "... that I can't change what is reported via SNMP" pretty much eliminated the option of tweaking the 'bandwidth' parameter in the device.
-- Ron Marosko, Jr. . . . . . . . . . . . . . . . . . . . . . . . . . . CCIE No. 4526 (R/S), NN5DX Senior Network Engineer RJR Services, Inc. pgp pubkey: 0x58AB8B5C "To know me is to fly with me."
-----Original Message----- From: observium [mailto:observium-bounces@observium.org] On Behalf Of Kevin Phair Sent: Tuesday, April 28, 2015 1:29 PM To: Observium Network Observation System Subject: Re: [Observium] Overrride bandwidth on a port?
On 4/28/15 2:12 PM, Spencer Ryan wrote:
Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
On cisco gear, you can look at setting 'bandwidth <whatever>' on the interface itself. In most cases this won't change actual network functionality. This is used by things like EIGRP in its routing metric work, so you'll want to be sure that isn't an issue first.
I missed a key part of the original question and left my annoying signature in. Double fail.
You can create alerts on arbitrary bandwidth usage, using the actual rates instead of percentages. It looks like that is done with things like ifOutOctets_rate and ifInOctets_rate. You may be out of luck for changing anything display wise though.
On 4/28/15 2:35 PM, Ron Marosko wrote:
I was going to suggest likewise, but that part that says "... that I can't change what is reported via SNMP" pretty much eliminated the option of tweaking the 'bandwidth' parameter in the device.
-- Ron Marosko, Jr. . . . . . . . . . . . . . . . . . . . . . . . . . . CCIE No. 4526 (R/S), NN5DX Senior Network Engineer RJR Services, Inc. pgp pubkey: 0x58AB8B5C "To know me is to fly with me."
-----Original Message----- From: observium [mailto:observium-bounces@observium.org] On Behalf Of Kevin Phair Sent: Tuesday, April 28, 2015 1:29 PM To: Observium Network Observation System Subject: Re: [Observium] Overrride bandwidth on a port?
On 4/28/15 2:12 PM, Spencer Ryan wrote:
Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
On cisco gear, you can look at setting 'bandwidth <whatever>' on the interface itself. In most cases this won't change actual network functionality. This is used by things like EIGRP in its routing metric work, so you'll want to be sure that isn't an issue first.
Yeah, I know I can do the calculations by hand, but then I'm having to create individual alerts for ports, vs a blanket one I have now that is:
ifInOctets_perc ge 80 ifOutOctets_perc ge 80
With a delay of 6, gives me an email.
*Spencer Ryan* | Senior Systems Administrator | sryan@arbor.net *Arbor Networks* +1.734.794.5033 (d) | +1.734.846.2053 (m) www.arbornetworks.com
On Tue, Apr 28, 2015 at 2:50 PM, Kevin Phair kevin@nyi.net wrote:
I missed a key part of the original question and left my annoying signature in. Double fail.
You can create alerts on arbitrary bandwidth usage, using the actual rates instead of percentages. It looks like that is done with things like ifOutOctets_rate and ifInOctets_rate. You may be out of luck for changing anything display wise though.
On 4/28/15 2:35 PM, Ron Marosko wrote:
I was going to suggest likewise, but that part that says "... that I can't change what is reported via SNMP" pretty much eliminated the option of tweaking the 'bandwidth' parameter in the device.
-- Ron Marosko, Jr. . . . . . . . . . . . . . . . . . . . . . . . . . . CCIE No. 4526 (R/S), NN5DX Senior Network Engineer RJR Services, Inc. pgp pubkey: 0x58AB8B5C "To know me is to fly with me."
-----Original Message----- From: observium [mailto:observium-bounces@observium.org] On Behalf Of Kevin Phair Sent: Tuesday, April 28, 2015 1:29 PM To: Observium Network Observation System Subject: Re: [Observium] Overrride bandwidth on a port?
On 4/28/15 2:12 PM, Spencer Ryan wrote:
Is there a way to override the bandwidth on a port that I can't change what is reported via SNMP?
For example I have a 50Mb MPLS on a 100Mb Ethernet port. I want the % used and % alerting metrics to be based on 50 and not 100.
On cisco gear, you can look at setting 'bandwidth <whatever>' on the interface itself. In most cases this won't change actual network functionality. This is used by things like EIGRP in its routing metric work, so you'll want to be sure that isn't an issue first.
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participants (3)
-
Kevin Phair -
Ron Marosko -
Spencer Ryan