Ethernet Circuit/XCVT Limitations?

We are running a 20 node, ONS-15454 SONET ring, OC-48, with XCVT and the E100T-12-G Ethernet cards in each node.
One node currently has 3) STS-1 Ethernet circuits provisioned to it and we wanted to add 4)new STS-3c circuits. The first two were created with no problem but when the 3rd was being created, the option to select the Ethernet card slot was no longer available, only the OC-48 cards. We are able to create 3 new STS-1 circuits, with no problems, but no STS-3c.
Are we simply maxing out our cross-connect/XCVT? Is there some limitation on the E100T-12-G cards? Will upgrading to the XC10G remedy the problem?

As a follow-on to "tphelps" comments, the E-Series card's bandwidth is limited to a maximum of STS-12 to the backplane. As was earlier stated, restrictions required circuits to be created in a specific order, per the notice url provided below (I would assume the restrictions are still valid in newer SW).
http://www.cisco.com/en/US/ts/fn/100/fn12917.html
Depending on the type of Ethernet circuits you are trying to carry across the optical network (pt-to-pt, shared packet ring), you may want to consider using the newer CE-series, G-Series or ML-series Ethernet cards. The E-Series cards are of an old design and have been EoL'd.
Hope this helps.

Similar Messages

ONS15454 Ethernet Circuit Creation Problem

We are attempting to create an STS-3c Ethernet circuit between 2 nodes that both have the E100T-12-G Ethernet cards on an OC-48 ring. We know there is the limitation of 12 total STS's that can be created on each of the E100T cards. Node A has (6) STS-1 circuits provisioned, while Node B has (5) STS-1 circuits and (1) STS-3c circuit, for a total of 8 STS's. During the circuit creation, the Ethernet card in Node A does not show up as an available card, while Node B ethernet card does show up as an available card. Oddly enough Node B has more STS's on it than Node A but for some reason Node A's card cannot be provisioned.
Why does this card not show up while trying to create an STS-3c circuit? If we change the circuit type to STS-1, then it does show up as an available card.
Any ideas?
Thanks!

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
Hi Curt,
May you verify the card works in a port-mapped or single switch mode? Multicard EtherSwitch limits bandwidth to STS-6c.
Otherwise you may need to delete all the circuits and re-provision them again starting with 3c. That is due to the card limitation which is described in “CSCse84101 Port-mapped e100 does not allow create STS-1 with 2 STS3cs present”. That is not going to be resolved hence we need to follow the creation rule.
===========================================================
In a system with multiple Ethernet circuits provisioned in a point-to-point configuration, you might be unable to use the entire 12c bandwidth in a mixed configuration if you do not adhere to the following rules. These rules are applicable to all E-series modes including port-mapped.
To allow use of the full STS 12c bandwidth capacity to be dropped at each node in a point-to-point configuration, provision your circuits in the following order:
Scenario 1: One 12c Circuit
Scenario 2: Two 6c Circuits
Scenario 3: One 6c Circuit followed by two 3c Circuits
Scenario 4: One 6c Circuit followed by six STS-1 Circuits
Scenario 5: Two 3c Circuits followed by six STS-1 Circuits
Scenario 6: Four 3c Circuits
Scenario 7: Twelve STS-1 Circuits
These guidelines are the only supported configurations for full 12c bandwidth utilization using any E-Series mode, including port-mapped mode. ===========================================================
Regards,
Alex

G1K-4 pt-pt ethernet circuit - cannot ping across ...

We are running in to a problem getting traffic through an ethernet link over SONET (ONS 15454). We cannot ping. We are using the G1K-4 cards and the WS-G5484 GBIC's. We are not able to ping across. We thought that maybe it is a problem with the GBIC not being a 15454-GBIC-SX. If that's not the issue, do you have other insite?

Just seen frank.rene's post in http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Networking%20Solutions&topic=Optical%20Networking&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddab83e confirming they have used the WS-G5484s without problem.

VPLS (ATM-Ethernet) using only one circuit in the main ethernet site

Hi Everybody
We are needing to connect the following topology in our MPLS net:
The main site connects to the net through an Ethernet circuit and the remote sites are connected through ATM circuits. we need to use only one vlan in the main site. It is possible to connect this topoligy using only one vlan in the main site through VLPS? or pseudowires? which other solution can we use to solve this problem?
thanks a lot.

I understand your best option will be to run AToM/L2VPN internetworking and have a PVC from a remote locate to be "internetworked" to a sub-interfaces (representing a vlan) at the central site which have an Ethernet connection.
Take a look at this example:
http://www.cisco.com/en/US/docs/ios/wan/configuration/guide/wan_l2vpn_iwkg_ps6922_TSD_Products_Configuration_Guide_Chapter.html#wp1055162
HTH,
-W

Router use for Ethernet hand off

Hello everyone,
we are trying to squeeze every ounce of life out of our hardware. Adding bandwidth to our network to accommodate social networking traffic. We are about to order a 200 meg Ethernet circuit with a T3 backup. We have two 3662s. My question: If I install a NM-2FEW2 card in one of them, will that serve as an Ethernet handoff? If not, is there a way to configure the 3662 as a handoff? What would I need to make that happen?
UPDATE: Understand that a 3662 with 100 meg ports probably won't work. What if we add gigabit adapter to 3662, or use a 7206vrx with gigabit adapter?

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
As Rick has already touched on, a 3660 series router doesn't have the performance to effectively support 200 Mbps. For that kind of bandwidth, you would want something like a 3925E, or maybe a 3945.

Outside Router Upgrade with New Additional ISP Circuit

Hi, everyone.
I am upgrading our single 2851 with an 80Mb Comcast Ethernet circuit and bonded US Signal T1 configured with BGP to two 3925's and an additional 50Mb Ethernet circuit.
So my goal is to have each 3925 configured with its own Ethernet circuit, one with the 80Mb Ethernet and the other one with the 50Mb Ethernet circuit. Both are Comcast circuits coming in from completely different cable runs.
Is it possible to configure this not just for fail-over but so both circuits are used at the same time?
Thank you,
Thomas Reiling

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Is it possible to configure this not just for fail-over but so both circuits are used at the same time?
Often the answer is yes.

Fastest CPU for K7T Turbo Limited Edition

I would like to ask, which is the fastest processor (Athlon XP) which I can put into this motherboard?? The general information on this website say that up to Athlon XP 2000+, but then there is a link on CPU Support and there is only up to XP 1800+, so what is correct??
Thanks

HI. This question has been asked many times. The official word from MSI is that the max. XP cpu is 1800 due to circuit board limitations. Some state that they are running 2000 XPs, but you risk the chance of burning up the board.Regards

Changed from DS3 to 100mb Ethernet, routing? issues

Just switched over to a 100mb Ethernet circuit from a DS3 and having some issues, routing issues I believe.
I'm attaching a drawing to help paint the picture which I'll explain below:
DS3 setup
DS3 circuit connected to a serial card on Cisco 7206 router, has a /30 network internal to Telco assigned to it
FastEthernet port coming off that router with public IP and subnet(was half of class C /25) assigned to it connected to a 'dummy' 12 port switch(basically acting as a hub)
The 'dummy' switch has 2 Cisco ASA's connected to it, each with a /26 subnet IP from the public block that we had
Also there are 2 Routers connected to this same switch, their IPs are /25 subnet IPs, but they fall outside of the /26 subnet mentioned above for the ASA's.
Hope this is not confusing so far...
Only had one routing statement on the 7206, ip route 0.0.0.0 0.0.0.0 serial1/0 and everything worked as it should, i was able to ping the 7206 IP from any internal device(either of the ASA's, the 2 routers, etc.)
New setup - 100mb Ethernet connection
Circuit connected to FastEthernet port that was empty on Cisco 7206 router, has a /30 network internal to Telco assigned to it - c.c.c.90
Same FastEthernet port as was used for original setup now has a new public IP and subnet(went down to /27) assigned to it connected to a 'dummy' 12 port switch(basically acting as a hub)
The 'dummy' switch has 2 Cisco ASA's connected to it, each now with a /28 subnet IP from the public block
The 2 Routers connected to this same switch, their new IPs are /27 subnet IPs, but they fall outside of the /28 subnet mentioned above for the ASA's.
Per Telco had to change the routing statement to point to an IP instead of an interface, so new statement is
Ip route 0.0.0.0 0.0.0.0 c.c.c.89
The Problem:
I can not ping the 7206 from either of the 2 routers or the 2 ASA's
I can ping the 7206 from my internal network behind the 2 ASA's just fine
I can ping the 2 routers and the ASA's from 7206 just fine also
HELP

Can we see the routing tables for all devices ?
Also the arp tables would be good.
Jon

Metro Ethernet Design With Redundant Head Ends

We're getting ready to turn up some metro ethernet circuits that were just installed by AT&T. AT&T has provided a VLAN for each remote site (so each site has its own VLAN), and those VLANs are trunked to our head end switches (Cisco 3750 Metro Switches).
I'm struggling with the best design for IP routing. We currently use OSPF on our internal network, and I was going to extend OSPF to our metro solution as well, but I'm not so sure now.
I don't want routing to occur directly between head end #1 and head end #2, we already have redundant paths within our corporate network, and allowing our two head ends to route between each other via our metro ethernet solution is not what we want. However, running OSPF on each of the VLANs which have been provisioned for us would permit routing between the head ends.
We simply need to allow redundanny for our remote locations in the event that one head end were to fail, all of the traffic to/from the remote site would be routed through the head end which is still online.
Anyone suggestions on the best routing design for this situation would be greatly appreciated. I've attached a network diagram to make things clear. I believe I can also go back to AT&T and request one VLAN that includes all sites if that would simply things. I just need to make sure I can still do our traffic shaping because the remote sites are only 10mbps and the head ends are 1gbps.
Thanks,
-Steve

just at a glance it looks as if you should be able to have stp on and setup 1 site as primary and other as secondary

15454 Ethernet Protection & Provisioning

Is anyone using E100T-G Ethernet cards in Cisco ONS transports forconnectivity? We are just starting and cannot seem to find an answer to a nagging question (after much RTFM and TAC runarounds). Our topology is a 15 node UPSR SONET. We currently have 3 nodes each with a 12-port E100 card. Node1 Port2 connects to Node2 Port2. Node1 Port3 connects to Node3 Port3. Everything is on the same VLAN (default). Now my question is of protection. When we setup any other type of circuit (DS1 or DS3) the circuit is created to be protected by default, the software provides a working and protected path. But when creating ethernet circuits there is no such option. So when looking at the circuit list under the Protection column instead of the "UPSR" listing like all the rest of the circuits, for the Ethernet we see "Unprot". Try as we might we cannot find a way to make these circuits protected. At this point we assume that if there is a fiber cut or loss, the whole ring will switch from the working ring to the protected ring and the Ethernet will go right along this path as well. We are going to be installing a couple more nodes next spring and we plan to test this by actually pulling the OC48 connections out while it is running (without live traffic of course), but in the mean time we are perplexed by this problem. If anyone has any thoughts, ideas, or suggestion on provisioning Ethernet and how to effectively and efficiently use Ethernet in a network, we'd love to hear from you.

You have several options then. If you leave your cards as a multi-card or single-ether card then they will operate as a Layer 2 switch. The E-series cards operate well as a switch but do not have all the features that can be found in the ML series of cards. One of the options is to utilize these cards at L2 with this method you can segment all your remote sites back on individual VLANs to your aggregation site. The protection mechanism in this case can either be individually protected circuits, however this can consume quite a bit of bandwidth with only STS granularity for provisioning these circuits. You can also map your circuits from card to card all the way around your ring. This allows you to create unprotected circuits and rely on Spanning Tree to protect your traffic and re-route in the event of a fiber cut. Bear in mind that Spanning tree can take up to 50 seconds per switch port to complete a topology change. In my experience on a 16 node ring with E-series cards, spanning tree can take as long as 3 or 4 minutes to complete and put all the ports back into forwarding. This time period may be unacceptable depending on your situation.
Alternately, you can provision your E-series card as port-mapped which changes them to a layer 1 card. You can then connect a switch to the ports in your remote sites. With a switch such as a 3550 you can implement RSTP (Rapid Spanning Tree) which can reduce your convergence time using rapid spanning tree to sub 1 second.
The ML card provides another option to implement a great Ethernet topology that includes RPR (Resilient Packet Rings) which provide for sub 50ms failover and spatial re-use. This is a greatly improved method of delivering metro Ethernet services and in addition support eoMPLS (Ethernet over MPLS) which can provide you some features that you can use in your own network as well as offer as a premium service to commercial customers.
Let me know if you would like to expand on any of these topics.
Best Regards,
Brad

Metro-E circuits between two sites

We have two sites connected by two equal cost Metro Ethernet circuits from two different service providers. we also have two redundant L3 core switches at both sites. What is the best way to connect these two sites for load balancing as well as redundancy? They are on different subnets. The core switches currently run HSRP. We also evaluating GLBP as a possible alternative.We want to possibly avoid all single points of failure.

You could, as you note, use GLBP, but an alternative could be, make the two paths from the intial/primary HSRP gateway appear equal cost. Many routing protocols would then alternate flows across the two paths.

Ethernet over WDM and SDH

How do we manage ethernet circuits over WDM and SDH transmission network? What all OAM tools are available for managing and diasnosis of these circuits.

EoSDH is the term used for transporting ethernet frames over a SDH transmission network.If you can remember SDH, one way this can be achieved is using Virtual Concatanation. Here, n x VC12s are concatanated to get the required speed. ex: if n=5, the speed is 10Mbps.(VC12=2Mbps).(i.e Ethernet frames are put inside the VC12 container and transported.)The SDH equipment will give the customer a normal RJ45 Ethernet interface and in the back end, the no. of VC12s corresponding to the Ethernet speed is concataneted and transported over a STM-1/4/16/64. On the other side, the concatnated VC12s are identified and the Ethernet farmes inside the VC12s are mapped on to the Ethernet interface.
If you see the end to end circuit, you will see ethernet. so normal tools used for Ethernet troubleshooting can be used. SDH troubleshooting tools can be used to test the transport part. There may be tools which can troubleshoot moare than this.

Let applications choose between WiFi and Ethernet

Hi Forum,
So basicly I'm connected to a secure ethernet line with limitations, besides that I'm also connected to wifi with no limitations.
I want to let apps choose between wifi and ethernet, is there any way to do so ?

(A repost of something I posted elsewhere - trying to help others)
If it helps you at least a little, in the Podcast App, playlists are now called "My Stations". You can add entire podcasts to Stations (and create new Stations), or you can add individual episodes to the "on-The-Go" station.
Not intuitive, and not as good as having the podcasts back with the music, but it gets the job done till Apple listens to the users again and changes this back.
Cheers!
Ken

Multi-homing VPLS circuits with different carriers?

Hi,
I've got a nice VPLS implementation with 22 different sites, implemented by 1 carrier (let's call them carrierA).
The boss now wants to have a backup VPLS implementation with a second carrier (let's call them carrierB).
So the end result will be that we will have 2 separate VPLS implementations provided by 2 different carriers.
The million dollar question:
Is it possible to multi-home these things, so that if there is any failure of any of the VPLS lines provided by carrierA, it will fail-over to carrierB?
The hardware I've got at these sites are Catalyst 4500 and 3750 switches, as well as some ISRs.
Thanks!

You would rely on spanning-tree to find the best path. If one of your interfaces goes down then it should send traffic to the next available interface. The downfall of ethernet circuits is that the protocol or interface typically doesn't go down when there is an issue. The switch or router will show up/up but actual issues exists and traffic is just being dropped from carrier issues. For that reason I like to setup IP SLA.
For the routing side just set both in the routing table and if you want an active/standby just weight one route higher.

Create STS-V circuit between 2 15454 SONET with CE100T

Hello all,
I have a problem that I cannot find documentation for.
I am creating a point to point ethernet circuit between 2 15454 SONET nodes with CTC ver 8.5. The circuit will transport a non-routed VLAN between Cisco 4948 switches in 2 data centers. I am using CE100T-8 cards with ethernet set to 100/full, flow control checked. The POS is configured with GFP-F framing and 32 bit CRC. Circuit type is a STS-V single STS for 50Mbit of bandwidth.
The switch ports are configured as access ports on the VLAN set to 100/full. At end B, the connection between the switch and CE port is a straight thru cable. End A is a crossover. switch ports are configured as such:
switchport access vlan 512
switchport mode access
switchport nonegotiate
speed 100
duplex full
Problem I have is that End A has the alarm "Transport Layer Failure" Near end and End B has the alarm "Carrier Loss on the LAN" near end. Neither end shows a ethernet link
Cabling has been tested, I have tried other ports on the CE and have deleted and recreated the circuit map.
What simple step/setting am I missing?
Thank you in advance,
Jim Bowen
[email protected]

Jim,
It sounds like your problem is on your B side that has the Carrier Loss on LAN. The Transport Layer Failure will be on the far end node in these cases.
You mentioned that the B end is a straight cable from the switch to the CE card but the A side is crossover. The first thing you can try is putting a crossover cable on the B side as well since it looks like the A side is working okay(does not have Carrier Loss on LAN).
I can't recall if the CE cards have an option to hardcode the speed and duplex but if they do then try that as well if the cable suggestion doesn't work. If that doesn't work you can try the auto negotiation setting on both switch and CE card to see if that fixes your problem. Once the Carrier Loss and LAN alarm clear you should be up and running.
Also I can't remember if the CE supports loopback testing but if you can try try putting a terminal loopback on the B side(this will be back towards to optics) your A end should come up and your switch should show up/up looped. Let me know how things work out for you. Looks like you are almost there just a couple tweaks should get it up and running.
Thanks.
Ryan

Ethernet Circuit/XCVT Limitations?

Similar Messages

Maybe you are looking for