We use Orion for monitoring. We recently started monitoring a workstation switch and find many occurances of port speed changes indicated. Our workstation ports are configured with auto speed and duplex. Is it normal that we are detecting speed changes on the ports? Do workstations running XP automatically adjust their speed for traffic management or power save? Perhaps something like speeds changing when PC goes to sleep mode but has wake on LAN enabled? Is it possible that the MIB is misreporting?
I realize that there are many different NIC vendors/drivers that might act differently. Just wondering (in others experience) if it is somewhat normal or if there is anything on network I should be looking into as to why speeds are changing? We plan to not monitor workstation ports (only uplinks) on the switch.. but before we do, I thought I would see if what we are detecting needs to be addressed?
Here is an example from Orion of a speed changing. Seems always off hours:
6/1/2012 6:17:52 AM eventWoRKSTATION-3750-CLUSTER - GigabitEthernet1/0/14 · 2nd Floor Patch#11 Interface Speed changed from 10000000 to 1000000000 bps
6/1/2012 2:47:52 AM eventWoRKSTATION-3750-CLUSTER - GigabitEthernet1/0/14 · 2nd Floor Patch#11 Interface Speed changed from 1000000000 to 10000000 bps
I have a Arris DLS with 12 Mbps Download and when I Connect my laptop directly I get the same speed as 12 Mbps but when I do the speed test with my linksys I get only 5 Mbps. How to upgrade to the new WRT54GL or WRT54GS?
We have a stack of switches that is at the max number of members allowed in the stack. Problem is we are running out of port density and need to add more ports. So instead of adding a whole new stack I would rather replace 2 of the 24-port swicthes with 48-port switches.
If the two 24-port swicthes we are removing are stack members and neither of them are the stack master, I should be able to replace the 24-port switches with the 48-port switches without bringing the master offline? If the new 48-port switches are running the same IOS version as the current 24-port swicthes, they should add themselves to the stack?Would I have to tell the new 48-port swicthes what switch numbers they are replacing in order for them to be added to the stack since we are at the max number of members?Also since the 48-port swicthes are replacing 24-port switches will the master give the 48-port switches the configuration for only the 24-ports?
My HP Envy 14 has an Intel 6200AGN wireless card. Is it not good enough to achieve 300mbps on my D-Link DIR-655? The firmware is current on the router and the signal is 100% almost every where in my home. Even when I'm a few feet away from the router, the most I'm able to get is 130.Do I need to change a setting on the router or upgrade the wireless card?
I have connected 2 SG500x switches using an SFP-H10GB-CU1M SFP+ Copper Cable module. Since the port shows as a 10G port, I would expect the speed to show as 10G as well. However, it shows as "Unknown". This doesn't leave me with confidence that it is being recognized properly. The link is working properly, but I haven't run tests to verify if I'm getting full 10G throughput or not. Shouldn't it show 10G as the link speed?
I am configuring a Cat 2960 port for connecting a VOIP phone, authenticated by MAB. On connecting the phone, I get the port authenticated and assigned to the correct VLAN, with LLDP-MED advertising the correct voice vlan. However, I then see no traffic from the phone on the switch. I can see the MAC address of the phone is learned in the right VLANs, but the mac address is showing as "Drop", which normally means the address is statically configured to be blocked. There is no static mac address table blocking configured on the switch.
Switch Version Switch Ports Model SW Version SW Image ------ ----- ----- ---------- ---------- * 1 50 WS-C2960-48TC-L 15.0(1)SE3 C2960-LANBASEK9-M Port configuration interface FastEthernet0/1 description "Standard user port"
I've got two two 3560s switchs, (WS-C3560G-48TS-S) that I'm trying to connect to each other using the GB ports over Fibre. We purchased the following GBICs, SFP 1000SX Transceiver and when we put them in the port it shows (err-disabled). Below is some information I pulled from one of the ports, but doesn't matter what port I use they all say the same thing.
ProdSwitchSW1#show run int g0/51 Building configuration... Current configuration : 37 bytes ! interface GigabitEthernet0/51 end
show cdp neighbors command shows two devices connected through the same local port?I have a Cisco 3560 that when I issue the "show cdp neighbors" command I get the following results: [code]
the question is why is this showing that Gig0/3 is being used twice to connect to two different devices. I have verified there is no hub connected to this port and in fact Switch3 is not connected to Switch1 at all yet it still shows up in the CDP table.
I have cleared the CDP table on every device at this location and still get the same results.
I replaced my old netgear router, which died recently, with a shiny new DIR-655 on my gigabit wired home network. Now I see that file transfer from my NAS is very slow (about 1 megabyte per second). I would like to check if the NAS has connected at 1Gbps to the router. I was browsing the "stat" or "attached device info" in the routers configuration webpage, but could not find it. To be precise, I do see the connection to the NAS, but there is no indication of the connection speed
I believe it's a v1 of the RVS4000 as I've tried to put the 2.x.x firmware and I couldn't.
My ISP upgraded me to a 100Mb/20Mb down/up plan (Quantum 100 here: URL However, through my RVS4000, I get the following speeds: Download Speed 18498 kbps (2312.3 KB/sec transfer rate) Upload Speed 19098 kbps (2387.3 KB/sec transfer rate) Latency 7 ms
Client Time December 4, 2011 11:06 AM Server Time December 4, 2011 11:06 AM PST
When I connect directly to the switch rather than through my RVS4000 I get: Download Speed 45818 kbps (5727.3 KB/sec transfer rate) Upload Speed 6240 kbps (780 KB/sec transfer rate) Latency 5 ms
Clearly there's something wrong here, where I'm getting less than half the download speed through the RVS4000 than I do without it. From the datasheet, it states that the RVS4000's WAN port is a 10/100/1000 port, so I don't see why I should have the limitation on speed.
I was wondering if there is a workaround to have a mac access-list bond to a port security violation action our need is the following: we have a range of 10 mac addresses that can use any port on the 3750, we only want to allow those ones yet we also need to tak action if a denied mac appears on any port of the switch.the only work around I found is to basically go into a port-rage mode and list all the allowed mac addresses under all the ports of the switch. I would also add to that a port violation action. did not test it but should work. problem is, it would be a huge config.I did read that we can create a mac access list and then bind that mac to physical ports wich will actually simplify our solution yet I did not find a way to bind the mac list with a port violation action.
Does Cisco 3750 ip sla can monitor, let's say, monitor 3750 G1/0/1 port status, once it is down, then 3750 also make G1/0/2 also down. If yes, what is the command to do it?
We are using 3750 switches as WAN router facing the WAN cloud. To configure QoS for its WAN port, should I use 'auto qos voip trust" or treat it like a router port and configure class-maps, policy-maps, and attact service-policy input or output?
Because switches have different queuing and dropping methods than routers, auto qos can generate QoS configs that are considered most appropriate for 3750 switches. However the switch functions as WAN router. Maybe it should be configured using router type of QoS with policy-maps and service-policy?
I have 2 3750x switches connected via a pair of stackwise cables, but I keep seeing error messages about the stack&switch ports going up and down,Performance wise, it seems to work, but I'd like to eliminate this message... Sometimes it will go hours without bouncing, sometimes it does it a few times a minute....
*Mar 4 12:56:57.903: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN *Mar 4 13:16:48.070: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to state UP *Mar 4 13:16:49.093: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to state DOWN *Mar 4 13:38:55.802: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state UP *Mar 4 13:38:56.809: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
I connect a copper SFP on port 2 of WLC 5508 to a ASA 5510 firewall. The links between two devices are down. Since ASA 5510 only support 100 full, how do I change port speed on port 2 to 100.
I have an old PC in my Buenos Aires apartment, connected to WiFi by means of a receiver module - because the modem is across the room and too far to connect by cable...But I get the message that the device would work more efficiently with a high-speed USB port...If I installed a high-speed card inside the computer, would this improe my Internet speed? It hangs up quite a bit... but then again, it's a Pentium III, so there's that limitation too.
Scenario: I have a vmserver w four virtual servers all in configured w in different subnets. What's the best way to configure a 3750-x switch to route traffic from the virtual servers to their vlans?
What is the load balance method of 3750 port channel ( by source ip , or by source mac ) to diver traffic to paths? I have tried to use 10.242.104.101 and 10.242.104.102 as source ip, it will travel to the same link (G0/1) within one port channel (G0/1+G0/2). Howerver, if I later use 10.242.104.109, then this time it will traffic to G0/2 link. What's the concept behind.
The stack cable connected to Switch 1 Port 1 and Switch 4 Port 2 will not come back online. The logs show that there was a Stack line change. I have replaced the 1 meter Stack cable from Switch 1 to Switch 4 three times and it still does not come back online. This is the part that is interesting.. I have disconnected Port 1 Switch 4 and connected it to Port 2 Switch 4 and then Switch 4 came back online. This made me think Port 2 on Switch 4 was working correctly. Then I disconnected Port 2 Switch 1 and connected it to Port 1 Switch 1 and then Switch 1 came back online.
have a cable i think is bad, is it possiable to switch the cable out without causing any downtime to the switch or connected devices?
HQ-1st-Flr-Stack#show switch stack-ports summary Switch#/ Stack Neighbor Cable Link Link Sync # In Port# Port Length OK Active OK Changes Loopback Status To LinkOK
There are two Win7 SP1 PCs (A & B), plugged in to a 3750-x (v12.2-58-SE2), on ports 33 and 41.
The ports are configured for 802.1x, auth order of MAB then Dot1x. Priority is Dot1x, MAB. The config is the same on both ports (verified at show run all).
When either PC is plugged in to port 33, everything works as I expect. Client sends an EAPoL message, gets a response, and is authenticated. When PC A is plugged in to port 41, same correct result. When PC B is plugged into port 41, the client sends an EAPoL start, and the switch never replies.
If port 41 has the authentication order changed to dot1x then MAB, PC B works fine.
We have configured Cisco 3750X POE series switchs with Stack.WS-C3750X-48P each with Redundant 1100W & 715 W PSU's. They are configured with Stack-Power in Sharing mode and the switches are Smart Stacked as well.IP Phone and Access points are connected its working in last two years,
Now we are facing some issue on Cisco IP Phone and Access point, When i have problem if unplug (disconnect & Reconnect) the IP Phone from Switch port,Power is not comming on switch port.Plug it into another switchport of the same Switch it may not power in any port.I tried shut & no shut and reconfigured on switch port , I have verified multiple switch ports same issue on the switch I have changed cable.
I am trying to configure a 3750 48 port switch and having trouble with getting it to see the sfp. I just want to set up the router with a pretty basic set up since I am using it for a ping test between 2 buildings, via fiber. How I can enable the sfp port?
We use a wlc model AIR-CT5508-K9 with eight built-in ports. I would like to know if it is possible to change the speed of these ports down to 100Mb. At this time, they are set to auto and 1000Mbps.
I am facing port speed issue on WS-C2960G-48TC-L series switch.This switch gig0/X ports connected to onother switches (Cisco and HP both switches are also gigbit ports and directly connected ).but interface is giving only 100mb/s output.ios on WS-C2960G-48TC-L is 12.2(44)SE6
We need to have one connection with less internet bandwidth assigned to it than all other other connections. Basically it is a separate conection from all others, incoming just from one switch port and separate VLAN.I know this can be done on the switch by limiting the bandwidth allocated to a port,
however, is it possible to have the speed limited down, just before it goes to the internet, ie, on the ASA, rather than doing it on the switch?The firewall is an ASA 5505.
We have an old 3508XL switch. We are trying to connect a new 2960 to it but we purchased the incorrect SFP insert and that speed can only do 100mb. We are getting link flaps and we suspect that it's a speed issue between the two. However, I cannot find how to set the speed on the old OS of the 3508 switch.
Below is a show version of the 3508 switch.
LR0007>show ver Cisco Internetwork Operating System Software IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5)WC17, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2007 by cisco Systems, Inc. Compiled Tue 13-Feb-07 15:04 by antonino
I have configured SPAN in cisco 3750 switch as below mentioned. but the destination port protocol is down.switch(config)#monitor session 1 source interface gigabitethernet1/0/1switch(config)#monitor session 1 destination interface gigabitethernet1/0/11 ingress vlan 1
