Cisco WAN :: Uplink QoS On 877-M?
Mar 6, 2013
I've got a Cisco 877-M at home which i picked up to replace the old Linksys/Cisco WAG160N, which was having dropout issues on my line?I've got a running config going on the router which is currently quite happily handling our LAN requirements (DHCP,IGMP Proxy, Firewall,DNS), but what I want to do is have an upload link QoS policy, which makes sure everyone can be able to access the net with little hassle (Not so much worried about the Downlink QoS, our connection can burst at time to 900k/sec (Currently on a 8160/384 ADSL1 Line, RIM, 300m Cable Length verified by ISP)I'd have to get the running-config from the router when I get home, but for a Home based network, what would be required in setting up a policy for Upload, to allow the following Protocols prioritised access to the net:
HTTP (Top Priority)
IMAP (Top Priority)
POP3 (Top Priority)
Streaming Audio (Med Priority)
BT (Low Priority)
These are the main ones.
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Dec 31, 2012
So the 2T comes with 2 10GE and 3 GE uplink ports. Can you use all 5, one or the other, a mix, or what? How does that work? It's not really clear from reviewing the products webpage or data sheet.
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Feb 7, 2013
I have an SA 500 with the optional port configured as the DMZ. The LAN ports are running the 192 range and the DMZ is the 172 range.
I have seperate offices (A few hundred feet apart) that have been connected with 2 un managed switches up linked with a single wire. The 192 range stuff runs over this. I need to get the DMZ out to the second room and was asking about how to do this over the single up link and switches. (Trying not to run a second wire)
My lack of understanding had me draw up this diagram attached as a picture, to ask about. What it shows is me trying to get the DMZ through the up linked switches to the other room. I thought of using 2 routers, one on each end. I've been told this is incorrect and wont work.
Maybe a purchase of a second hardware and eliminate the switches? (up link the SA 500 to another device?) What should that device be?
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Mar 19, 2013
I have a question regarding uplink ports on a switch. Specifically the SFP+ variety. Could these uplink ports be used to connect directly to a fileserver? To be more specific, would the uplink port on the HP 3800 Switches connect directly to a file server that has the SFP+ card installed?
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Dec 7, 2010
We need rededunt uplink in Cisco 2960 from Cisco 3550 , one uplink is primary and one is for backup.As per current scenerio one uplink in Cisco 2960 interface fe0/1 from Cisco 3550 int fe0/1 through OFC cable configuration 2960 int fe0/1 interface fe0/1desciption *** Connect to Cisco 3550 port 1 ***switchport mode accessswitchport access vlan 2spanning-tree guard loop Configuration Cisco 3550 int fe0/1desciption *** Connect to Cisco 2960 port 1 ***switchport mode accessswitchport access vlan 2spanning-tree guard loop We have facing the problem when OFC cable down , so now we are considering anather OFC via anather route to connect same Cisco 2960 Switch in Fe0/2 from Cisco 3550 int fe0/2 so when primary uplink goes down then backup uplink which is connect to Cisco 2960 fe0/2 from Cisco 3550 fe0/2 it's up.what is the command we need configure as per my require in both the Cisco 2960 and 3550 swith in interface and global mode also.
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Jul 6, 2012
Im now in charge of a medium/big size network (around 1200 machines).I found some connection pattern that im not shoure if it is correct.I migth be wrong, but i think this kind of connection would cause a continue RSTP change of topology (confusing about the 'direction' of the route to take), so having some latency period (this pattern of connection can be repeated several times in the whole network).BTW, there is no special configuration in switch A for saiyng that port 50 is not being used as a uplink port.
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Jun 26, 2011
My DIR655 is A4 with firmware v.135.
My normal uplink speed is above 4 Mbps but the speed goes down to 0.4 to 0.8 Mbps. The above unit was received from D-Link as a replacement for the same reason, but it worked for at lease 12 hours.
If the power is OFF/ON cycled, the normal speed comes back but last only about 10 minutes.
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Mar 10, 2013
I have a router with 2 service providers connectivity with different ASN and running with BGP.I've announce few IP-prefix by ISP-A and Few Prefix by ISP-B.Both are working well with redundancy.But,Problem is here, that the all uplink bandwidth goes through ISP-A link.I want to make it that, ISP-A routed ip-Prefix's upload data will go through ISP-A & ISP-B IP-Prefix's Upload data will go through ISP-B Link.
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Dec 9, 2012
Why the nexus 2k has 8 uplink ports ?
the nexus 7k or 5k can be devided into 4 virtual devices ( using vdc)and making 8 uplink ports in the 2k will allow us to use the extender for all the 4 vdc's with 2 uplinks ( for redundancy ) from each vdc
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Jan 28, 2013
I have a two Cisco 4510R each with two sup V-10GE redundant. The code on these sup modules are 12.2(31r)SG3. I need some assistance in getting this setup worked out. I have all four of the 10GE populated with appropriate optics. I setup a link from one 4510R to the other using these interfaces. From the documentation I found I had to use Tengi1/1 and Tengi2/2 as the redundant pair. I plugged the up link into these ports. The Tengi1/1 (active supervisor) links up and works fine. But when I look at the ports port Tengi2/2 it isn't showing link or active. Now port 2/1 (nothing plugged into it) is showing as active.
Now is the redundancy supposed to be 1/1 and 2/1? If so, the switch is in production, when I move the connection over from 2/2 to 2/1 will it cause a outage? The reason for this is I now have a system with a 10G port and would like to utilize one of the other 10G ports. Is that possible? Or does it have to be a lag/redundant up link to work (say to another switch)?
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Apr 25, 2013
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?
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Nov 15, 2012
We have a single HP 2810 switch being used for an iSCSI SAN.We want to replace it with dual higher end switches.But we've got another SAN to also setup now - Dell Equallogic PS6010E - that has 10gb iSCSI SFP+ ports.Can the 4 x SFP+ uplink ports on the Dell PowerConnect PCT5548 or the HP 3800-48G-4SFP+ switch be used for just the 10gb iSCSI, while the other 48 handle the 1gb iSCSI?We were told the uplink ports don't have buffering, making them bad ports for iSCSI traffic and only useful as uplinks to another switch.We only need 8 x 10gb ports (4 for 2 servers, and 4 for the Equallogic SAN), so if the above would work, it would probably save us $10,000 from having to buy a separate 24 port dedicated 10gb switch to handle it.
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Nov 14, 2011
If I have two stackable switches one that connects to the 6509 core switch and the other switch does not, do I have to uplink the switch to the other switch so that switch has route to the core switch or because the switches are daisy chain there is not need to cable one switch to to the other switch connected to core switch?
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Aug 14, 2012
Is there a big difference in operating AP's when they are uplinked at 100mb vs 1000mb? We have 2 "main" offices that have AP's that are all connected to our access switches at 100mb. Recently with the addition of mobile devices, phones, etc we are seeing some issues. Today, we had a meeting room that had 20+ people connected to one AP and they started seeing issues of people getting disconncted or unable to connect.Just wondering if the uplink could have anything to do with this, or if we are just over subscribing the APs?
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Feb 7, 2011
I am trying to connect a cisco catalyst 3750g-48ts with our exsiting 3com corebuilder 9000 using the SFP ports, I have established a link and the interface is up.
The issue is that no data is passing through between the two, everything looks like it's up and enabled, spanning tree has detected the uplink port and has automatically set it to forward, both devices suggest the link is in place and the lights are on .
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Oct 1, 2012
I have a switch 2960-24TC-L with GEC (realised with 2 giga interface uplink) with switch 3750. the configuration is ok, the GEC is up and other feature working. I try to upgrade 2960-24TC-L from 12.2.44SE6 to 12.2.46 or 12.2.5x or 15.0.x...the upgrade it's ok the swithc boot..and the configuraiton is same.. but the giga 0/1 and 0/2 on 2960 not bring up....and the better the interface on 3750 are up.
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Feb 26, 2013
At our office we have a weird performance problem with the following switches and connectivity:
Internet |
SG300-24 (L3) core switch (in our server room)
|SG300-10P (L2) access swtich (in our meeting room) |
SG500-28P (L3) switch (in our meeting room)
We are building a new computer infrastructure that is connected to the the SG500-28P. As you can see above the SG500-28P in our meeting room has an uplink to the SG300-10P in the same meeting room. And again the SG300-10P has and uplink to the SG300-24 in our server room. From the server room, there is connectivity to internet. The network uses a multiple VLAN's and routeing between them. Bootom line is, the internet VLAN ID 10 is tagged to trunk ports and available on the SG500-28P. So client get connected straight into the internet based VLAN.
The performance on the SG500-28P switch itself from VLAN to VLAN is very fast. But... the uplink connection tot the internet and other VLAN's on the core switch are very and very slow! At least 10 times slower than normal. So if I plug a laptop in the SG500-28P and go from uplink to uplink, it is slow! But... when I connect the same laptop to the SG300-10P the connection with only one uplink it is fast. As if three switches is to much. I can't figure out why.
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Sep 2, 2012
I'm trying to configure VXLAN on 1000v but it not working between two esx.
As I followed the troubleshooting guide on Cisco's website I discovered the following error: Can't get uplink MTU: 4681 Here is the output of the "vemcmd show vxlan-stats ltl 50" command. Port LTL 50 is the VM's port.
vemcmd show vxlan-stats ltl 50
VXLAN Port Stats for LTL 50
Unicast Encapsulations: 0
[Code].....
I've set mtu to 9000 on the UPLINK profile (port-profile) and enabled jumbo frames support on the upstream switch.
Here is the output of show run: [URL]
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Jun 17, 2012
I implemented the 3560E switch, this one have two Giga bit ethernet/10-Gigabit Ethernet module slots. I used the Twin Gig Converter Modules and one SFP. All configuration was applied in the Ten Giga bit, however the interface giga bit ethernet is UP UP state and the Ten giga down down.
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Nov 3, 2011
I have three switches:
primary - Cisco Catalyst 3750G-24TS-24
and two SG300-28
I need to apply uplinks as follows:
3750G-24TS-24 SFP (1) -> SG300-28 (first) mini-GBIC (1)3750G-24TS-24 SFP (2) -> SG300-28 (second) mini-GBIC (1)SG300-28 (first) mini-GBIC (2) -> SG300-28 (second) mini-GBIC (2)
I would like to know, What type of mini-GBIC and SFP and cable I should use for SX Multimode?What max speed rate I will get?
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Nov 18, 2011
I have an older Wireless Access Point router (BEFW11S4) which I retired when I purchased a Wireless-G Broadband Router (WRT54G). I have added a 5th PC to my home computer network that does not have wireless capability. So now I have exceeded the 4-port limit of the WRT54G. Can I UPLINK from a Wireless Access Point router (BEFW11S4) to a Wireless-G Broadband Router (WRT54G)? I browsed the BEFW11S4 User Guide and could not find specific setup instruction for connecting another switch.
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Mar 8, 2012
I am looking for a Switch with a 10GBE uplink to go with a qnap TS879u with a 10 GBE card.
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Jan 24, 2013
I have configured about 20 of these switches now, and notice in the port listings a TE1/1//1 TE1/1/2 and GI1/1/1 GI1/1/2 uplink port. There are only two uplink SFP+ ports. I now have a reason to install with a 1Gb uplink to the Core. I am using a GLC-LH module at each end. I did configure the TE1/1/1 port for the uplink. Does not work though..Do I need to configure the two GI1/1/1 and 1/1/2 ports for uplink, remove the TE configuration for the uplink to work? Using the UNIVERSAL code with a LANBase license.
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Jul 5, 2012
I was trying to uplink a switch today on a 1500m run of SMF. I have a 6509 core switch with a 16 port GBIC module. On that end I have a WS-G5486-LX with a 3m SC to LC patch cable.On the other end I have a 3750G with a GLC-LH-SM SFP. I have checked my fiber path and it seems good, (by sight, did not have an OTDR avialable).I can't get the link up at all. Tried swapping Tx Rx at one end, Tried different transceivers. Tried different patch cables. Nothing worked. At about the mid-point of my fiber run the cable passes through another network closet with a core switch for a separate network. If I break my fiber path there and try to connect in either direction it works. The only differences are the length of the fiber run and that the core switch on the other network has a CLC-LX-SM SFP.Is it the distance? Or is there some issue connecting a GLC-LH-SM to a WS-G5486-LX?
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Oct 31, 2011
we have several uplink ports on a verity of cisco switches connecting to the nexus 7000, recording CRC errors.most are trunked ports with the following configuration. [code]
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Aug 22, 2011
I've just purchased 2 switches SG100-24 and use fiber cable to connect these switch together. I plugged cable in module MGBSX1 and then put it into miniGBIC uplink port but despite trying many times, also rebooted devices, I still not make these uplink ports up. how can I bring them up?
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Sep 5, 2012
our network is spread over 15 floors and each floor we have 5-6 switches. we are planning to purchase cat3750-x 24 ps poe with C3KX-NM-10G network modules. Each floor has two up links to the core switch with single mode fiber and other being the multimode.Suppose if we are purchasing 75 switches do we have to purchase 75 C3KX-NM-10 G modules.? or can we limit our purchase with 15 C3KX-NM-10G sothat two uplinks from each floor can be made? since network modules are optional cost factor is invovled. Or any issue with stacking ? the SFPs will be LR and LRM MODULES.looking for an answer ? whether the new usb type console cable comes bundled with cat350x or shall we have to order separately?
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May 3, 2012
My company has a single 2811 WAN router with dual uplilnks to different ISPs right now. Recently we have had a major hardware failure issue that resulted in network outage. My manager reconsidered my recommendation of dual WAN routers but told me we had limited budget so could only afford one new router.
So now we are looking at solution of 2811 + 2911 with same license level. We don't have any special feature, just basic routing, basic BGP and static routes. I need to know what the implication of having different WAN router model is.
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Mar 5, 2012
I'm currently trying to diagnose a re-occuring problem with output drops on an uplink interface to a SonicWALL firewall, between 1am - 3am every night we receive alerts that the output drops (discards) counter has incremented.
This time frame happens to be when several network based backups are running so that's probably to blame for the added traffic count but I'm trying to narrow down what's actually dropping the traffic.
The switch hardware is a WS-C3750X-48 running C3750E-UNIVERSALK9-M , 12.2 (55) SE3.
My current thinking is that the output drops are indicative of congestion on the link to the SonicWALL indicating that the SonicWALL unit is incapable of processing the traffic flow fast enough thus causing the congestion and ultimately the output drops on the Gi2/0/48 interface.
According to SonicWALL the unit is rated at 1.5Gbps throughput without UTM services (pure stateful), and no UTM services are enabled.
I've posted a section of the show interface command:
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
[Code].....
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May 9, 2013
We have a remote site that is using 3750X switches as layer 2 switches back to our home site. The uplink port is showing dropped packets but the utilization on the link is never about 10%. We have a 100Mb circuit to this site. Our speed tests and iperf tests are not showing any issues that we can see. However the port is still droping packets. It is not dropping at a high rate but they are dropping.
switch#sh platform port-asic stats drop gi1/1/4
Interface Gi1/1/4 TxQueue Drop Statistics Queue 0 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0 Queue 1 Weight 0 Frames 52876 Weight 1 Frames 2 Weight 2 Frames 0 Queue 2 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0 Queue 3 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 1330874 Queue 4 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0 Queue 5 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0 Queue 6 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0 Queue 7 Weight 0 Frames 0 Weight 1 Frames 0 Weight 2 Frames 0switch#
Is there a way to capture these dropped packets to see what they are? We do have VOIP phones at the site and are using Qos.
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May 28, 2012
we have just purchased a few 3750x's that we intend to add to our 3750g stacks. We've purchased the 10gb uplink modules, C3kx-nm-10gt, but when they are installed they are not appearing in the switches web gui nor can you configure them correctly. If we upgrade a 3750x to 15.0.1 they seem to work fine. All of our current 3750g's are running 12.2(58)SE2 IPBASE so we don't really want to have to upgrade them all to 15.0.1
Are we missing something or do the 10gb modules only work properly with ios 15.0.1?
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Dec 15, 2011
I know in the past on earlier models of the supervisors that you couldn't use all eight uplink ports(4 on each supervisor) simultaneously when you have two supervisors on the chassis. Is this the same case for the 10Gb uplinks on the supervisor 7-E on the 4500 chassis? I tried doing my research but couldn't find an answer.
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Dec 3, 2011
I need a L2 switch with dual AC power supply and RJ45 uplink The optin I got was WS-C3560X-48T-L + C3KX-PWR-350WAC , but the problem is with uplink . There is no RJ45 1G uplink , there is only option for SFP uplink The another option was WS-C2960G-48TC-L , but there is no dual AC power supply option a good model ( Dual AC power supply , RJ 45 uplink ports (Gig) , with 48 port 100/1000 UTP)
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