Cisco Switches :: SG500X-48 Stack Link Down Warning Messages?
Jan 24, 2013
I just deployed two stacked SG500X switches. I noticed these messages in the log (see below). Despite these messages everything appears to be functioning.
21474818342013-Jan-25 11:41:17Warning%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (369)
21474818352013-Jan-25 11:41:17Informational%Stack-I-LINK UP: link 0 on unit-2, aggregated (369)
21474818362013-Jan-25 11:37:25Warning%STCK SYSL-W-UNITMSG: UNIT ID 2,Msg:%Stack-W-LINK DOWN: link 0 on unit-2, aggregated (1)
21474818372013-Jan-25 11:37:25Warning%Stack-W-LINK DOWN: link 0 on unit-2
21474818382013-Jan-25 11:37:25Informational%Stack-I-LINK UP: link 0 on unit-2
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I purchased 2 SG500x switches that I will stack and connect to a NAS device at 10G. I need to purchase transceivers. The documentation has me confused. I just want to make sure that I can use SFP-10G-SR to stack and as the interface to the NAS. S1/S2 for stacking and XG1/XG2 to connect to the NAS all at 10G.
StartSSL offers free SSL certificates, so I'm guessing that means no Warning messages from browsers IE,Chrome,firefox atleast? Has anybody used this StartSSL certificate lvl1 is free..I'd tryed this myself but my hosting company is charging twice more for having ssl(just having it not even buying) than for hosting my website.
Trying to connect SG500X-24 switches to a new installation of MOE (four sites)provided by Century Link. I have tagged the uplink port with the MOE vlan, but traffic does not want to pass through.
I need to confirm how many queues actually supports the switch SG500X?. In SG500X_data_sheet.pdf document (pg. 8) say they have 4 hardware queues (8 future) !
We have a VOIP system with 1 physical NIC attached to our SG500X. It has a virtual MAC address along with the physical MAC address. It has 2 IP addresses tied to it.
I can ping the physical IP address, but can only ping the virtual address from the same vlan as the virtual nic. However, if I clear the arp table, a few pings will go through until they all time out again. This is causing problems on my phone system, and I need to establish this communication. I have tried putting in static MAC and ARP entries, but that does not work.
i was checking the datasheet of 500X series and got confused regarding the 10GE uplinks. how many 10GE ports can be used for uplink and which transceiver should be used for 10GE copper uplink? for example, SG500x-24 switch has 24GE ports and 4x10GE uplinks. can i use the 4x10GE ports for uplinks or only 2 ports are for uplink and the rest for stacking?
I have several SGE2010P switches connected in a stack. They are working fine as a stack.
Question is - what traffic, besides stack control, is carried over the stacking links?
All unused ports are VLAN 1U. Ports in use belong to VLANs 100, 101, and 105.Since I cannot configure or see the stacking ports, I am unclear if any non-default VLAN traffic passes over those links between switches?
redundant Power Supply?PIM sparse mode (PIM-SM), PIM dense mode (PIM-DM), and PIM sparse-dense mode?Layer 4 prioritization: enables prioritization based on TCP/UDP port numbersUni-Directional Link Detection (UDLD) — monitors a link between two switches and blocks the ports on both ends of the link if the link goes down at any point between the two devices
We currently have the XG1 through XG4 ports on our SG500X switch setup in a LAG with the Cisco 10G-FiberOptics. Everything is working fine,however in the web UI under Port Management->Port Settings the "Port Speed" is listed as Unknown. All other ports report the speed correctly. We have 2 SG500X switches configured this way and both are reporting the same Uknown speed.
Firmware Version (Active Image): 1.2.7.76 Firmware Version (Non-active): 1.2.0.97
I am installing a network that has two SG500X-24 switches as core and several SG300-52 switches as access switches. I've seen in the SG500X-24 datasheet that there is a True Stacking feature. But in the data sheet there are not a lot of details about it. My doubt is the following. If I configure the two SG500X-24 switches as a single switch through stacking them, can I connect one SG300-52 switch to these two SG500X-24 switches through two cables (both configured as a LAG in the SG300-52 and in the SG500X-24 stack, one cable per SG500X-24), the the first cable connected to the first SG500X-24 switch and the second cable connected to the second SG500X-24 switch and keep both connections active?
We have a site with a number of SG500X switches who are about to have a new server installed.
The server is a Dell ESXi host with a dual port 10Gb NIC supporting SFP+.
I know the primary purpose of the 10Gb ports on the SG500X is for stacking etc. but the switch does come with four 10Gb ports.
Why I wouldn't be able to utilize a 10Gb port as a copper connection to the 10Gb NIC on the server? Anyone out there with a SG500X connected directly to a server at 10Gb?
I have two workstations running 7 Pro, each has a quad port intel card (PCIe) which I have created teams for on both sides using link aggregation. On my switch, a Cisco SG500X-24, I set up two LAG's with 4-ports each and have both servers connected as necessary. I turned on Jumbo frames and disabled energy saving. The teams were set up without LACP turned on, however I tried it with LACP and I also ran into the same problem. Both workstations have a 26TB arrays running in RAID 6 (so plenty of read/write speed), however, with this setup, I can only get about 100MB/s (single port speed) and multiple data streams cause the speed to divide. Only single ports blink on the cards as well.
Questions 1 is probably a no-brainer, but it's my first time setting this up, but once this is working properly, would it allow a single file to transfer at ~400MB/s or would I need to start multiple datastreams to take advantage of link aggregation.
Question 2 is what do I need to change to make the link aggregation work?
I do have a little linksys router plugged into a non aggregated port to do DHCP but that wouldn't mess anything up, would it? Considering I can unplug it once everything is talking, all the transfer should take place at the switch level, correct?
I have a point to point 100mb line connecting SG500x switches at 2 locations, with these ports in a vlan together. I use layer 3 on the SG500x's to route between the two sites. I also have RIP protocol enabled to allow for automatic failover if the point to point fails (this works well).
I upgraded the ios to 1.30.59, and the connection now runs at a fraction of the speed. I have hard-coded the ports to run at 100mb full duplex, but I still only get around 12mb of throughput between the switches. I used to get about 90mb before. The provider also hard-coded the circuit to 100mb full duplex. The provider has checked the circuit remotely, and everything looks fine. I tested with a laptop at each side, and did get almost 70mb throughput. I would think this indicates some type of setting mismatch, but i cannot find anything.
I am using a backup vpn for now as some things look flaky as well (on vpn, I can use the web interface to access the SG500x on the opposite side, but on the point to point I cannot - I can ping the device though).
I have seen some references on here to shutting off STP on these 2 ports.
I looking to buy SGE 2010 swith, but I have some question:
1. Can I use 4 SFP ports and stack of two switches at the same time. 2. Is it possible to use for stacking ports other than 24, 48? 3. What is maximum possible number of ports to use for stacking (can I get more than 1Gb thruput).
12-Nov-2011 23:35:33 :%HAL_config_phy-I-CHNGCOMBOMEDIA: Media changed from copper media to fiber media (Unknown) on port gi19. 12-Nov-2011 23:35:33 :%HAL_config_phy-I-CHNGCOMBOMEDIA: Media changed from copper media to fiber media (Unknown) on port gi20. 12-Nov-2011 23:35:33 :%Fiber-I-SFP-PRESENT-CHNG: gi19 SFP status is present. 12-Nov-2011 23:35:33 :%Fiber-I-SFP-PRESENT-CHNG: gi20 SFP status is present
However these ports are not in use and have nothing installed...............Firmware 1.1.2.0 (latest as of Nov 2011)
Using a Samsung Galaxy S2, iPod Touch 3rd Gen, and Nook Color, they are all experiencing retry problems, even when 3 feet from the DIR-601. When I use them my log gets filled with messages like:Blocked incoming TCP Ack packet from 192.168.100.201:2926 to 209.85.145.113:80 with unexpected sequence On the devices I see the downloads/content taking a long time to appear and often I get a blank page or "Retry" messages. I purchased two DIR-601s and get the same problem with both. They are both running 1.02NA firmware. The WLAN is Time Warner cable modem. Prior to this I had a Linksys WRT-54 that gave great performance, though just at B/G speeds. I was hoping for a performance boost but right now the N speeds are slower than B with the retries.
I would like to find out if the Cisco SFE2000p supports Link-Aggregation in a stack. For instance Unit 1 interface 1 and Unit 2 interface 1 in the same LAG?
Can I create lag betwen stack unit to increase speed between units ?? stack connection is only 1Gbit on ports 24/48 if posible lag link must be in trunk mode ?
I have 3750 stack with 4 switches.I am trying to make change some port to new VLAN, but switch 2 & 3 new change never works, the ports stick with old VLAN. Other two switches works as I expected on new changed VLAN.Tried to reboot, no progress.
#Show VLAN command confirmed the VLAN changes are made. #show switch detail Current Switch# Role Mac Address Priority State -------------------------------------------------------- 1 Member 0019.e752.xxxx 1 Ready 2 Member 0015.f9bf.xxxx 1 Ready
I have 3 SLM248G4S switches in a stack (SW1, SW2, and SW3), and want to pull one out and configure it as a stand alone.
If I just disconnect the stacking ports from SW3 and reconnect the bottom stack port from SW2 to the top one of SW1, the two switches continue to function together fine, but SW3 still seems to think it's part of the stack (still shows #3 on the LED screen) and doesn't work at all. I cannot even telnet into SW3.
I have to setup my first flex stack and wanted to make sure I do it right. I have the physical aspect of the stack down. From what I gathered I have to setup the master switch as the highest priority and then provision the other two switches. But I have configs on the other two switches, do I have to delete them? And do I have to setup individual ips for the two slave switches, because from what I saw the master switch is the only one with an ip address? The master switch is a poe 2960S-48LPS and the two other switches are 2960G-48TD
I am running LMS 4.1 and have an issue with Inventory: I have a stack of four 3750 switches, but only two of them are showing up in CiscoView. If I right-click - Topology - Device Report ; I see all four switches. The switches are standard 3750 switches and should be included in the Device Packages for CiscoView
Also if I go Reports - Detailed Device ; I see the same two devices show up under Module Information. However when I go to Reports - Device Attributes ; I see all four devices correctly displayed.
I have tried and deleted and added the stack in CiscoPrime, but with same result.
I have 2 switches c3750 which I want to install in stack to replace two Nortel switch that I have in production.
When connecting my new stack of cisco switches to a cisco router c3750 to 2600, they begin to restart by itself. I mean, There is a cisco router 2600. which I want to connect to the stack of switches. The problem is that when the switches connect to the router it begins to restart.
If you need to see the running config of the cisco Switches or the 2600 router.
Recently, we had a 3750X stack of 9 switches reload with no information as to why. Our syslog server received no spurious errors regarding the cause nor did the location lose power. The UPS to which it is attached logged no glitches relating to power. Other cisco devices (router, other switches not in the stack) did not reload. No one was in the MDF during this time. We self insure these line of switches so a TAC case is not an option at this time. Any forensic tools that I could try in an attempt to narrow down the cause.
