Alerts for metro ethernet link

Hi,
Kindly let me know " How to enable alerts for metro ethernet link"
Thanks..

Hello Gureshi,
they are probably referring to OAM, CFM and other mechanisms to detect link or service failure in metro ethernet scenarios
see
http://www.cisco.com/en/US/docs/switches/metro/me3400e/software/release/12.2_52_se/configuration/guide/swoam.html
Hope to help
Giuseppe

Similar Messages

Customer Equipment for Metro Ethernet Link

Hi All
It has been some time since I utilised Cisco network kit to provide private circuit point to point connectivity and I wonder if someone could give me a little guidence.
The customer is shortly to implement a new 100Mb Metro Ethernet link to connect two of their branches. They initially intend to use the link for data only traffic but eventually will want to route VOIP traffic across the link so bandwidth management and QoS will be essential components. It is unlikely that further links will be added to this link so built in expansion of the chosen routers may not be required.
Budget will be an issue on this so I would appreciate any advice or recomendations.
Thanks
J.

Hello James,
I think it would be better to get in touch with your Cisco Account Team as this question cannot be answered on a forum post.
Thanks,
Karim

QoS on metro ethernet links

We recently got a metro ethernet link (45Mbps) between 2 of our offices.
Currently we do not have any QoS services from the provider on this link.
I want to implement QoS over this link. Should i treat this as a normal P2P link and do the QoS or should i also need to ask the SP to do some sort of QoS in their MEN.
Does it really matter to have the SP do QoS as well
Note:- I will be using the link purely as a L3 P2P link
Thanks in advance
Narayan

You would need the QOS on the MAN connect as well. Even though you are running a L3 P2P link you are traversing multiple L2 hops.
And where there may be contention by others traffic contending for the resources.
I believe in most cases your SP's 4 to 5 Classes would be good enough. Still you may want to understand his classes and also may want to negotiate the SLA terms.
Once this is taken care you can simply ask him to trust the incoming DSCP on the attachment circuit at his UPE.
You may also have to configure incoming DSCP trust on your Metro-CPE link which connects to you internal core routers.
HTH-Cheers,
Swaroop

Security for Metro Ethernet over Fiber

Is metro-ethernet over fiber (point-to-point) link secure ? Can someone sniff into the network (and see unencrypted data) over Metro-ethernet point-to-point link ?

You might want to read this:
http://www.cisco.com/en/US/solutions/collateral/ns341/ns522/ns3/metro_ethernet_white_paper.pdf

LMS Metro ethernet monitoring

Hi,
I'm pretty new with CiscoWorks LMS and need some advices. I need to find a way to monitor metro ethernet links between devices in my customer's network (through DFM and RME maybe). I've been searching through documentation but haven't found anything helpful. My idea was to monitor syslog traps regarding EIGRP and OSPF routing protocols but as far as I can see LMS doesn't have support for this, it supports just 27 different traps. Is there a way to customize LMS so it can react on traps that are interesting for me? To put it shortly - can I monitor routing protocols (maybe through gathering syslog messages and then alerting upon them)?
Btw, LMS is version 3.2.
Any advice is appreciated!
Regards, Omar

Hi,
thanks for the advice. I'd like to be able to differentiate alarms between locations in my network. I'm attaching a drawing which presents my network. There are 2 ME links from different providers between bigger locations and edge locations. When OSPF neighborship is lost between router A and router B, meaning ME link x is down, customer would like to receive a message saying 'ME link between location A and location B is down'. When neighborship is up again, customer would like to receive a message saying 'ME link between location A and location B is up'. In my opinion, the only way to do this is by making as many Automated actions as I have locations multiplied by 4 (2 ME links - for each set and clear events). Please correct me if I'm wrong. Do you maybe have an alternative solution (maybe to differentiate between IP addresses and locations on the application that would collect LMS emails, URL or script results)?
Regards

Best way to detect failure in Metro ethernet networks

Hello ,
I am working for a well known provider and I am currently migrating one of my client from Frame-relay to Metro-ethernet link .
I am actually looking for advices on what sort of mechanism to implement to detect a failure in the ME parth .
As you probably know , failure on one of the links might cause the CE-SWITCH-PE interfaces to stay up/up and the network will not neceseraliy start converging .
So far I have implemented BFD along with IP SLA route tracking , I am happy with BFD but the IP SLA is acting "weird" .
- IP SLA ICMP tracking rely on ICMP packets and was too sensitive to packets lost
- We switched to ip route sla tracking but I am still unsure about the best way to use or implement this .
Is there some sort of best practices available somewhere for this ?
thanks ¨
T

Hello Thomas,
From what i have seen BFD is best bet as it allows to relax the L3 protocols timers ( BGP / any other protocol used between CE- PE ). Another option is to have gre tunnel between the PE - CE link and track this tunnel interface.
Regards,
Shreeram

Metro ethernet configuration

Months agao I had a 10MB metro ethernet link installed between two of my locations within 3 miles of each other. The link is fiber with a conversion module to copper, 10MB ethernet.
I have the link on one end coming into a fastether port on a cisco 2620 router and the other end on a fastether cisco 3745.
My routing the man like a frame link, each location is on a seperate subnet.
I have not configured either end for IPsec, tunnel, etc.
I have had the line checked by the ISP, but constantly received interface resets,output errors and excessive collisons.
I feel I'm missing something from the configuration.
I have verified my equipment is fine, both fastethers have been changed so my equipment is good.
Any suggestions would be appreciated.

It is related to send a busty traffic to you Ethernet interface and check the duplex and speed for both ends (It should be match).Check any viruses updated from the local Computers. Normally collision will happen when an Ethernet or transceiver cable is too long or when there are more than two repeaters between stations. So if the error is more then automatically the interface is resets. I hope the below link provide you more information.
http://www.cisco.com/en/US/products/hw/voiceapp/ps967/products_administration_guide_chapter09186a0080194668.html
http://www.cisco.com/en/US/products/hw/optical/ps2006/products_installation_and_configuration_guide_chapter09186a00800a9f95.html

Metro Ethernet in RAIL Transportation (MRTS) applications

Dear Sir,
I have a query related to Metro Ethernet technology.
We are into TRANSPORTATION SYSTEMS. We are coming up with a MRTS Project in Mumbai , India. We are at a planning stage at the moment. As per our experience, companies in RAIL MRTS Applications are using SDH technology (MUX and access multiplexers).
Could you please suggest , should we go for METRO ETHERNET of SDH Technology.
Are there any players/ any Metro Projects who have implemented Metro Ethernet ( instead of SDH).

Hi Pankaj
What kinda applications you are going to use and what kinda bandwidth requirement you have in place ?
Also do revert back the number of locations and a bit more onto your topology which mite help to get back with our suggestions..
regds

3750 Metro ethernet switch

Folks,
I have 6500's at the core and want to use the 3750 at the PE. My question is the following:
1) 3750 would do Q-IN-Q.
2) Once the packet reaches the 6500(sup 720) running MPLS. What happens to the frame. Do i use xconnect to transfer the frame to the appropriate PE?
Just confussed about how does the PE use the Q-IN-Q information to direct it to the appropriate PE?
Sample config would be highly appreciated.
Thanks

Well.. its about product features .. you gotta compare products with your requirments at various layer of your network and to come out with justification of your requirments . Any ways below is snippet for you to have some justification between two products
===============================================
What is the difference between the Cisco Catalyst 3750 Metro Series and the Cisco Catalyst 3750 Series?
The Cisco Catalyst 3750 Metro Series is built for Metro Ethernet access in a customer location, enabling the delivery of more differentiated Metro Ethernet services. These switches feature bidirectional hierarchical QoS and Traffic Shaping; intelligent 802.1Q tunneling with class-of-service (CoS) mutation; VLAN translation; MPLS, EoMPLS, and Hierarchical Virtual Private LAN Service (H-VPLS) support; and redundant AC or DC power. They are ideal for service providers seeking to deliver profitable business services, such as Layer 2, Layer 3, and MPLS VPNs, in a variety of bandwidths and with different SLAs. With flexible software options, the Cisco Catalyst 3750 Metro Series offers a cost-effective path for meeting current and future service requirements from service providers.
The standard Cisco Catalyst 3750 Series is an innovative product line for midsize organizations and enterprise branch offices. Featuring Cisco Systems® StackWise technology, Cisco Catalyst 3750 Series products improve LAN operating efficiency by combining industry-leading ease of use and high resiliency for stackable switches.
What is the Metro Ethernet positioning of the Cisco Catalyst 3750 Metro Series, the Cisco Catalyst 3550 Series, and the Cisco Catalyst 2950 Series?
Cisco Catalyst 3750 Metro Series Switches
=========================================
Cisco Catalyst 3750 Metro Series switches are a new line of premier, customer-located switches that bring greater intelligence for Metro Ethernet access, enabling the delivery of more differentiated Metro Ethernet services. These fixed configuration switches feature bidirectional hierarchical QoS and Traffic Shaping; intelligent 802.1Q tunneling; VLAN translation; MPLS, EoMPLS, and H-VPLS support; and redundant AC or DC power. They are ideal for service providers seeking to deliver profitable business services, such as Layer 2, Layer 3, and MPLS VPNs, in a variety of bandwidths and with different SLAs. With flexible software options, the Cisco Catalyst 3750 Metro Series offers a cost-effective path for meeting current and future service requirements from service providers.
Cisco Catalyst 3550 Series Switches
==================================
With a range of Fast Ethernet, Gigabit Ethernet, DC power, and fiber configurations, the Cisco Catalyst 3550 Series is an intelligent metro access switch for service providers serving the enterprise and small and medium-sized business markets. Featuring 802.1Q tunneling, high-performance IP routing, and subsecond Spanning Tree Protocol convergence, this line of powerful, cost-effective, fixed-configuration switches enables Metro Ethernet services such as Transparent LAN services and business-class Internet access.
Cisco Catalyst 2950 Series Switches
===================================
Ideal for Metro Ethernet access in residential markets, the Cisco Catalyst 2950 Series is an affordable line of fixed-configuration Fast Ethernet and Gigabit Ethernet switches. Featuring advanced rate limiting, voice VLAN support, and multicast management, these switches enable residential Metro Ethernet services such as Internet access, voice over IP (VoIP), and broadcast video.
Hope it helps
Ps rate this post if it helps u ..
Thanks and Regards
Raj

Email alert for discussions don't link to reply functionality

We're on SharePoint 2013. We have a discussion forum that we set up a daily change alert. After 6 months we have little reply posts. Until today we noticed that the change alert links to the posting of the discussion BUT WITHOUT the reply
functionality available.
A user happened to also ask the same day how do they reply.
So... community... does someone know how to make the alerts link to the page that does allow the replies? Thanks!

Hi Suzan,
How did you configure the Alerts for the discussion list?
Did you use the OOB alert in SharePoint?
If yes, please click the “View [Item Title]” link in the email to access the discussion in the site and then check if the Reply button exists.
If above cannot work, I recommend to check the things below:
Check if the users have permission to reply to the discussions.
Check if the issue still occur when accessing site directly.
Best regards.
Thanks
Victoria Xia
TechNet Community Support

Traffic Shaping on 6880 between sites over metro ethernet

Hi
I have a new dual site setup with 6880s at the core at one side and 3650 stack at the other. We have a 200mbps ethernet solution from our service provider but on testing we are maxing at a bit over 100mbps, iperf tests directly on the link are giving 200mbps so I need to apply some shaping to get the full usage from the link. In the past I have used srr bandwidth on metro switches but the 6880s don't support this. So I assume I need to setup policy maps and apply to the physical interface? The interfaces are layer 2 trunks and we are stretching vlans between the sites. E.g. siteA has vlan20 and site B has vlan 20 over the metro ethernet service, site b is layer2 only and all routing and services are provided at siteA
Is it as simple as this? It seems too easy :) So I may be missing something. I just apply this on the physical interface at each side?
policy-map POLICY-S2S-200MB
class class-default
shape average 204800000
policy-map POLICY-S2S-200MB-IN
class class-default
police cir 204800000
conform-action transmit
exceed-action drop
~
int gi1/1/1
service-policy out POLICY-S2S-200MB-OUT out
service-policy out POLICY-S2S-200MB-IN in
Your input would due treaty appreciated!
Thanks,
Aidan.

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
Ah, well that's great! (Hmm, now I wonder if same feature is available on 6500 with sup2T or 6807.)
In that case, your output policy might be just as simple as what's in your OP. Cisco isn't really clear whether all their shapers (or policers) are counting L2 and L3 or just L3. I suspect many just count L3. If that's true in this case, you may need to shape about 10 to 15% slower to allow for L2 overhead (this assuming your provider is providing 200 Mbps of "wire" bandwidth.
If you're able to shape on the other side, then there should be no need to also police the ingress. Also, assuming provider limits bandwidth, there's no reason to police ingress at CIR rate.

Metro ethernet, Ethernet protection ring.

Hi everybody.
I hope everybody is doing great. A quick question for you guys.
Let say we have Ethernet switches connected in a ring .We want to use Ethernet protection ring for loop avoidance and faster convergence.
One of the switch will be RPL owner, and of the link in our ring will be chosen as RPL link.
1)My question is what is the criteria for RPL owner selection and RPL link? ( For e.g in STP, we use lowest bridge priority for root bridge)
2) Is Ethernet protection ring provide an alternative to stp when we switches connected in ring toplogy and fast convergence is required as is the case with metro ethernet commonly ?
Have a great evening.

Dear Friend
If you want to deploy and use L2 VPN service you should
define whst is he type of core
do you want to use L2 VPN service based on IP or MPLS?

Metro Ethernet vs Leased line

Guys,
I'm setting a proposal for WAN link. there will 2 option, 45 MB leased line and 100 Metro ethernet. I need to know what is the pro/cons for this 2 technology as i need to explain to the customer.
Do anybody have a link or explaination on this?
Thanks
Rezzo

WAN vs Metro
1) Future BW Expansion : Metro-E BW expansion is as very easy compared to adding leased circuits to the WAN.
2) Service levels : Since Metro-E is a service it has better service levels than a traditional WAN link.
3) Finally Cost: In most cases the BW cost derived per Leased Circuit to that of Metro-E Link is higher in most places.
What may make the choice of WAN more practical is the availability of WAN only and no Metro service in a area.
Plus if the customer is not at all comfortable with a shared infrastructure link like Metro-E.
HTH-Cheers,
Swaroop

Metro ethernet and ethernet

Hi all,
I am new to metro ethernet concept. Can someone give me a head start and also, what are the differences in ME switches and normal switches ?

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 Peter wrote, Metro Ethernet is a vast topic. However, from a non-provider perspective, the idea is to allow interconnecting widely physically separated (your) site networks just about as simply and similar to connecting your LAN together at one of your sites. I.e. you just connect different (your) site devices with an Ethernet connection, and you use that connection pretty much like you would any other Ethernet link between your devices.
From a carrier or MAN provider perspective, running a widely distributed, multiple customer Metro Ethernet (or a carrier Ethernet) network, you'll want some features not found in (as you say) "normal" Ethernet equipment.
What's different about Metro Ethernet switches is they generally offer features not found in "normal" Ethernet switches. Again, from a non-provider perspective, you often only need/desire a few additional features (and for that reason, it's not uncommon for non-providers to use "normal" Ethernet switches with Metro E - I've also seen Metro E switches used with "ordinary" LAN Ethernet networks). From a provider's (carrier's) perceptive, you'll really want more features. Because of these two perspectives, you'll often find Metro Ethernet switches marketed to non-providers, and Carrier Grade Ethernet switches marketed to the MAN Ethernet providers.

Metro ethernet switches

i am new at metro ethernet. What is needed in a standard switch (Cat4500, Cat6500, etc) in order to support metroethernet services. thanks ahead
asanes

Hi,
It basically depends where you want to put the devices you stated in the network, looking at the devices I think you should have MPLS, LDP/RSVP and other standard routing protocol.
For access, you also should have STP (RSTP/MSTP) configured.
Please go through this link for further information
http://cisco.com/en/US/customer/netsol/ns341/ns396/ns223/ns227/networking_solutions_package.html
Cheers,
Sultan

Alerts for metro ethernet link

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