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When it regards buffer utilization when you do a "show sys perf" then it is the cpu buffer utilization. This number can vary but should be nearly zero when cpu utilization is low.

It depends if your network design is sânninge tree based or SMLT based. When an access switch connects to an SMLT cluster (2 SMLT capable core switches) STP must be disabled on the uplinks to the core. When an access switch connects to a "normal" core STP must be enabled on the uplinks to the...

For v. 5.0 it is also advised to upgrade the PCMCIA to 512MB. For CWDM you must use one color / connection. In your setup you need two O-MUXes (4 or 8 ports/colors), one on each site and use two ports/colors.

There is an easy way to configure your switch with the Nortel java device manager, this is free to download nortel.com => support & training => sofware downloads => Network Management => under switches & routers you will find a link java device manager. you must put the two ports in a mlt...

- Ensure the same images (boot and runtime) are loaded on the switches you wish to put in stack. - Check if there is a stacking module (in the back right side) in each device. - Set the "base" switch ON on ONE device, OFF on ALL others. - connect the stacking cables in a ring (from base to...

It is possible to set the switch in auto learning mode for some time and then stop this. It is possible to allow one specific MAC address on a port or to allow a list of mac addresses on a number of ports. It is also possible to upload the MAC address list to the switch. But all this is...

Depending on the "protocol"(*) used to connect switches the SMLT time-out can vary a lot. (*) - Auto negotiate and NO auto negotiate will give the fastest SMLT fail-over times. - SFFD (Nortel proprietary "Single Fiber Fault Detection protocol") gives SMLT time-outs of > 20 seconds. - No...

Cisco Etherchannel or any other way to do link aggregation should seamlessly cooperate with Nortels SMLT. The 8600 supports 802.3ad (LACP) but I'm wondering what the LACP scaling numbers are for the 8600.

Hi, I have no experience with MAC security on these switches but what i know is. - MAC address security was always possible by auto learning or providing a list of MAC addresses. For me this seems not maintenance friendly, you have to visit all switches again when there is a change in the...

Mirroring is done by hardware and doesn’t affect CPU load. I agree regarding the R module remark. Investigating the published screen shot for me the image on the devise is NOT 4.0 or 4.1 (some menu's are missing) and therefore it are NOT R modules. WH

As far as I know mirroring on an 8600 is done in hard ware and so the CPU is not involved. Depending on the HW: - Pre E modules support only rx mirroring, others support rx, tx, both and rxfilter mirroring. - M, E and pre E modules you can use IP subnet filters with action mirror and select...

Be aware code after 3.5 needs more CPU memory!

Are there errors shown on the MLT ports? Remarque's: A 55X0 uses the source/destination algorithm to decide which link of an MLT to choose for a communication pair. On a 4X0 or 3X0 series switch its different, the first active port will take the first local link of an MLT, the second active...

Nortel Optivity tools only support Nortel devices. ESM (Enterprise Switch Manager) uses only the topology information learned by the Nortel devices and therefore can work with one or more L2 or L3 device as seed device(s). Connected devices must receive each others topology packets, this means...

Configuration: - 2 ERS 8600 core switches with 8630GBR modules (30 port 1000SFP GBIC) in SMLT configuration running image version 4.0.4. - About 40 Baystack switches/stacks connected (1000SX) MLT of 2 ports on Baystack to SMLT on core. - About 100 servers connected (1000SX) teaming with load...

Do you fill in the IP address e.g. 192.168.1.1 specific or 192.168.1.* for a range or *.*.*.* for all? b.r. WH

Install ENMS, it has a tool to locate end-nodes called end-node locater. b.r. WH

Select “edit or new fault script” to open the edit or new fault script window. Make the device, faultname … selections. I use a batch file to send the same information to multiple destinations and enter a line for each recipient of the message e.g. postie -host:<<Email server name/address>>...

Does somebody know what this repeated log message means in a Nortel BayStack 470 switch? Type Unit Time Idx Src Message ---- ---- ----------------------- ---- --- ------- I 2 2005-04-03 06:31:58 GMT 1 Attempt to delete/modify non-existing element (prohibited)...

Is this what you are trying to do? Your solution will work but you need a lot of interfaces/subnets on the router. With BayStack switches there is a different solution requiring only one subnet on the router. - Configure VLAN tagging/trunking on all uplink ports, configure all VLAN's on these...