Cisco Routers - optimal dsl sync interval for bt a...

Hi has anybody played around with the "dsl sync interval" on Cisco routers, I was after finding out the optimum setting.........or is it a "well it depends" type answer?
Many thanks

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What is the default sync interval for firefox 29?

Only like to know the sync interval for firefox 29 in android.
Thanks.

hello danielgomes, sync doesn't always happen on fixed intervals, but it depends in part on user actions and certain situations: https://wiki.mozilla.org/Firefox/Features/Instant_Sync
''edit: it appears that the normal interval with multiple devices connected to an account is 5 minutes & with only one device that changes to daily: http://mxr.mozilla.org/mozilla-release/source/mobile/android/base/sync/syncadapter/SyncAdapter.java#62''

Polling interval for Topology Services in Cisco Prime 4.2

Hi,
Where can I find the polling interval for Topology Services? I noticed that the devices' status is not updated on the map.

Hi Benjo,
If there are few devices which you are more concerned of then you can add them under CRITICAL poller list.
Check the below link:
http://www.cisco.com/en/US/docs/net_mgmt/ciscoworks_lan_management_solution/4.2/user/guide/admin/datacollection.html#wp1053692
NOTE:
If the critical set of devices is more than 30, the amount of traffic generated as part of the polling cycle will use a large amount of bandwidth.
Thanks-
Afroz
[Do rate the useful post]

Cisco or Linksys DSL router that will work with Windows XP Pro?

Any suggestions for a CISCO or LINKSYS DSL router to replace a Zyxel (Century Link) PK5001Z? System is Windows XP Pro, 20 wireless and wired devices connected (including 6 CISCO WVC210 IP cameras ). The Zyxel forwards as many ports as I want, but will only open a limited number of the ports. This limits my access thru the internet (local network sees all cameras). Zyxel support is unable to help.

Hi Edward, if you're looking for a modem/router combo device, Cisco offers the SRP500 series. However this product is EOS/EOL. The small business product line does not have any other DSL termination router aside the SRP series. If your goal is to use a DSL modem and then have a router, you may want to consider RV325 router as it is very feature rich and quite robust.
-Tom
Please mark answered for helpful posts

The difference of the IEEE802.1x Auth between Cisco Routers and Catalyst switches

Hello
I am investigating the difference of the IEEE802.1x Auth between Routers and Switches.
Basically dot1x auth is availlable on Catalyst Switches. however if I want to check to
PortBased Multi-Auth , MAC address Auth and any certification Auth with this feature,
Is it possible to integrate into Cisco Router such as Cisco 891F ?
In my opinion Cisco891F is also available to use basic IEEE802.1x but if it compares with Catalyst switches such as Cat3560X
I think there might be any unsupported feature on Cisco 891F.
I appreciate any information. thank you very much in advance.
Best Regards,
Masanobu Hiyoshi

Many time in interviews asked comaprison between cisco routers and switches that i was answerless bcoz i dont have much knowledge about that.Can anyone provide me the compariosin sheet of the same.how are the cisco devices differ with each other how much Bandwidth each routres support and Etc...
Ummmm ... The most common question I get is "what is the difference between a router and a switch".
However, if you get a question like this, then my impression to this line of questioning are:
1. The candidate they are looking for has in-depth knowledge of routers and switches. And I mean IN-DEPTH!;
2. They are not looking for a candidate. They just want to stroke their ego. There is not alot of people who can give you the "names and numbers" of routers and switches at a snap of a finger. And if you do happen to know the answer, then and there, then expect a tougher follow-up question.

Ask the Expert: Packet Capture Capabilities of Cisco Routers and Switches

With Rahul Rammanohar
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about packet capture capabilities of Cisco routers and switches.
In May 2013, we created a video that included packet capture capabilities across multiple Cisco routers and switches. For each product, we began with a discussion about the theory of the capabilities, followed by an explanation of the commands, and we concluded with a demo on real devices. In this Ask the Expert event, you’re encouraged to ask questions about the packet capture capabilities of these Cisco devices:
•       7600/6500: mini protocol analyzer (MPA), ELAM, and Netdr
•       ASR9k: network processor capture
•       7200/ISRs: embedded packet capture
•       Cisco Nexus 7K, 5K, and 3K: Ethanalyzer
•       Cisco Nexus 7K: ELAM
•       CRS: show captured packets
•       ASR1K: embedded packet capture
More Information
Blog URL: Packet Capture Capabilities of Cisco Routers and Switches
Watch the Video: https://supportforums.cisco.com/videos/6226
Hitesh Kumar is a customer support engineer in the High-Touch Technical Services team at Cisco specializing in routing protocols. He has been supporting major service providers and enterprise customers in routing, Multiprotocol Label Switching (MPLS), multicast, and Layer 2 VPN (L2VPN) issues on routing platforms for more than three years. He has more than six years of experience in the IT industry and holds a CCIE certification (number 38757) in service.
Rahul Rammanohar is a technical leader with the High-Touch Technical Support Team in India. He handles escalations in the area of routing protocols and large-scale architectures for devices running Cisco IOS, IOS-XR, and IOS-XE Software. He has been supporting major service providers and large enterprise customers for routing, MPLS, multicast, and L2VPN issues on all routing platforms. He has more than 13 years of experience and holds a CCIE certification (number 13015) in routing/switching and service provider.
Remember to use the rating system to let Hitesh and Rahul know if you have received an adequate response.
Because of the volume expected during this event, Hitesh and Rahul might not be able to answer each question. Remember that you can continue the conversation in the Service Provider, sub-community forum shortly after the event. This event lasts through November 1, 2013. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

Hello Erick
    Thanks for the topology. The trigger will be different for labelled packet as you would need to mention the values of labels too in the trigger.
     Below are two examples of one or two labels being used, it depends on where you are capturing the packet in mplsvpn scenario which will decide teh number of labels being imposed on the packet.
Trigger for one label. (if the router on which you are capturing the packet PHP is being performed)
VPN label - 5678
Source Address - 111.111.111.111
Destination Address - 123.123.123.123
show platform capture elam trigger dbus others if data = 0 0 0 0x88470162 0xE0000000 0 0 0x00006F6F 0x6F6F 7B7B 0x7B7B0000 [ 0 0 0 0xffffffff 0xf0000000 0 0 0x0000ffff 0xffffffff 0xffff0000 ]
Trigger for two labels. (for other core routers)
IGP label - 1234
VPN label - 5678
Source Address - 111.111.111.111
Destination Address - 123.123.123.123
show platform capture elam trigger dbus others if data = 0 0 0 0x8847004D 0x20000162 0xE0000000 0 0 0x00006F6F 0x6F6F7B7B 0x7B7B0000 [ 0 0 0 0xffffffff 0xf000ffff 0xf0000000 0 0 0x0000ffff 0xffffffff 0xffff0000 ]
    You can check the labels being used (by using show ip cef <> details) and covert their values to hex and change the trigger accordingly.
     I have changed the colors for better understanding. If you notice carefully in the trigger the values for ip address, labels have just been converted to their respective hex values which could be replaced.
     Please let me know if this helps.
Thanks & Regards
Hitesh & Rahul

PHD Sync interval of Automatic

Hi,
Today I was playing around with setting up PHDs. I am running a MacMini Server with 10.6.3 and the clients are also MacOS 10.6.3.
In WGM the most frequent background sync interval is 5 minutes but I noticed if I access the sync options on the client machines, there is an option called "Automatic" that is not available in WGM.
I couldn't find any documentation on this. Does anyone know if it does indeed work as the name implies? That is, automatically sync after a file is modified.
Thanks,
Andy

Hello,
BIS is no longer in play, so it's capabilities are now moot. As you recall, for non-PUSH email systems, BIS would poll the server every 15 minutes, and shorten that interval whenever there was something found on the server, slowly lengthening the interval back out to 15 minutes for as long as nothing was found on the server.
With the BB10, it's all ActiveSync directly between the device and the email service provider. If the service provider supports PUSH, you can configure the BB to use it, and it indeed works. If the service provider does not support PUSH, then you are limited to 15 minutes as the shortest interval available.
Typically, it's a matter of properly configuring no the device. For PUSH-capable email services, it often means bypassing the wizard configuration on the device and instead using the Advanced settings.
Lastly...as to your actual question..."why"...well, the only answer is because that's they way the programmed it. As to why they chose to program it that way, an answer would require access to proprietary "internal" decision making information...not very likely.
Good luck!
Occam's Razor nearly always applies when troubleshooting technology issues!
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Implementing WAAS using 3925 and 2911 Cisco routers

Dear all,
I am new to Cisco WAAS and therefore I would like to request some help regarding the following scenario:
I have a star network (1 hub and 5 spoke) topology where each satellite site is connected via a 2 MB (symmetric) to the Head-Quarters (Central node). In order to be able to concentrate all servers (services) at the head-quarters and improve the users experience in remote sites when accessing network services that are located at the head-quarters we want to implement Cisco WAAS instead of increasing the existing bandwidth.
At the head-quarters we are using a 3925 Cisco router and at the remote locations we are using 2911 Cisco routers. Last but not least there will be approximately 75 concurrent users from remote sites accessing resources at the head-quarters.
Currently I am planning to use the following:
·At the head-quarters I am planning to use a Cisco Wide Area Application Services (WAAS) Module: SM-SRE-900-K9 with an Enterprise license (for large deployment) in the Cisco router 3925
·At the remote sites I am planning to use a Cisco Wide Area Application Services (WAAS) Module: SM-SRE-700-K9 with an Enterprise license (for medium deployment) in the Cisco router 2911
Is there anything else that I am missing or need to take into consideration for deploying the WAAS.
Regards,
Screech

Hi Screech,
Answers:
Is the dedicated WAE hw for central management purpose a required component?not required as WAEs can optimize even without Cntral managementbut you will not be able to collect statistics, reports and will have to manage WAEs from CLI. This a kind of highly recommended management piece you will need.
What is the difference between using a full blown WAE instead of a Sm SRE module: Using a fully blown WAE at DC is recommended as you are then avoiding couple of bottlenecks.
1. Bandwidth allcoation
2. SM / NM models have low capacity, disks where as fully blown models like 674s have 10k/15k SATA / SAS drives.
3. HW redundancy: you have backup PS / HD in dedicated WAEs in msot of the models.
4. HW dependency: Your SM moduels depened upon your router / switch. If for some reason, switch or router goes down, SM moule goes down at same time.
5. Additional NICs / HW availability.
There are various other reasons you might want to consider. You can ask your cisco sales engineer or one of the PDI help engineer on the forum can also punch in here.
but basicaly, I would go for fully blown WAE on DC side and central management piece as well.
Regards.

Cisco 2500 with DSL

hi there, I have two cisco 2500 routers, having AUI interfaces. both locations have DSL connection from verizon,. is there anyway i can use these routers with DSL if yes then do i need to buy any special module

Hello.
the only way I could see you router being integrated into a DSL solution is by connecting the Ethernet port of your ADSL router/modem to the Ethernet AUI port of your 2500. But unless you have a 2514 (which has two Ethernet ports), that would still not get you anywhere, since you need an additional Ethernet port to connect your switch...
Regards,
GP

Securing Telnet access on Cisco routers (access class)

Dear All,
In all my network i have cisco catalyst switch and cisco routers deployed in my WAN. In cisco routers, it was activated an ACL to secure telnet access to WAN devices. only 3 hosts (remote) were autorized to access these devises. I need to modify this secuirty to have access from the LAN (locally).
The ACL was implmented in all routers, and activated using access class in.
in there any idea without changing more the configuration and only tell the router to apply this ACL for WAN and not access for the LAN ?
Thanks for your help,
Best regards,

Hi,
here is the ip int brief.
thanks
CISCO1841#show ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.1 YES NVRAM up up
FastEthernet0/1 192.168.2.1 YES NVRAM up up
ATM0/0/0 unassigned YES NVRAM up up
Dot11Radio0/1/0 unassigned YES NVRAM up up
Dot11Radio0/1/0.1 192.168.2.129 YES NVRAM up up
Dot11Radio0/1/0.2 192.168.3.1 YES NVRAM up up
NVI0 unassigned NO unset up up
Virtual-Access1 unassigned YES unset up up
Dialer1 151.16.203.203 YES IPCP up up

Cisco routers support ipv6 in OPNET?

Hi all,
my question is: which of cisco routers support ipv6 in OPNET Modeler simulator?
please, It's urgent.
Thanks in advance.

Hi Dan,
This is a funny community section to pose questions on the SOHO 97
It's End of Like annoucement was a wee while ago, in June 2006.
http://www.cisco.com/en/US/prod/collateral/routers/ps4866/prod_end-of-life_notice0900aecd804d5ad6.html
As you appreciate, the replacement for the SOHO97, the 800 series product supported IPv6.
I have taken the liberty , in relation to soho97, to copy a section from the IOS software release notes from the following URL;
http://www.cisco.com/en/US/products/hw/routers/ps221/prod_bulletin09186a00801ffda1.html#wp1003249
It states the following in relation to IOS version12.3(4)XG
"Baseline IPv6
Supported Platforms: Cisco 831, 836, and 837 Series Routers; Plus Images Only
Support of the baseline initiatives IPv6 features—providing IPv6 support to all Cisco 830 Series platforms. Further details in release notes."
Like yourself, no where can i see a reference to the SOHO 97 product supporting IPv6.
regards Dave

Difference between setting up a vpn with windows 7 and cisco routers

Hi.I was wondering what the main difference Is between setting up a vpn with windows 7 or configuring It on cisco routers.
When you setup the vpn on windows 7 or xp do the client and server pc's take care of the encryption and decryption whereas configuring vpn on routers , the encryption and decryption Is done solely by the routers?
If I want to setup a connection where an IP In the same Internal lan Is assigned to the client pc I'm guessing I'd have to use a router configuration.
Thanks

Thank you for the response, lucky for me there was another option. Threatened to cancel with the ISP on the NAT side unless they assigned us a public static ip/gateway/subnet. They ended up doing that and the VPN connected as soon as the changes were made in the Linksys.

MTU calculation on CISCO routers

Hello, just wanted to clarify my knowledge on MTU.
interface commands -
IP MTU: is calculating LAYER 3 HEADER + ITS PAYLOAD, which makes max MTU of 1500.
MTU: ETHERNET HEADER + LAYER 3 HEADER + ITS PAYLOAD, which makes 1514 mtu if no mpls, no tags are used. I AM right ? Looking at some vendors other than CISCO (for example) alcatel -lucent this seems to be correct.
But i saw on some cisco routers MTU and IP MTU - 1500 bytes. Why MTU is only 1500, how CISCO calculates MTU, it doesn't count ethernet header or what ? So my calculation above is bad considering CISCO ?
Thanks!

Hello,
Sorry Giuseppe, but I have to disagree with your statement that ((IOS MTU is referred to layer 3 PDU only)) and with the ((MPLS MTU)) command.
Infact, how Cisco treat MTU is what should be understood, at least from my point of view and experience.
The IOS indeed calculate the (IP MTU, Layer-2 MTU and MPLS MTU), below how its calculated:
1- The 1500 of (IP MTU) considers the layer-3 Header and the Payload.
2- The Layer-2 MTU of (1500), considers the Ethernet Header and CRC Trailer of additional 22 bytes as well, So the Default of (MTU 1500) doesnt mean the header and FCS is not considered, the fact, the total layer-2 MTU is equal to 1522, but when you see it 1500 on the IOS, it doesnt mean its not considerable, its calculated as a sum and its shown as 1500, So the 1500 considers the Ethernet header and CRC in its Calculations.
I have seen many implementation where MTU were a big issue resulting in performance degradation and frame/packet drops if not increased, Especially when having MPLS and Dot1q Tunneling.
The Layer-2 MTU from my point MUST be increased when using Dot1q Tunneling to consider the Inner VLAN tag of 4 Bytes, Like Wise, the MPLS MTU on IOS Platforms must be increased to accomodate the additional labels.
I hope this gives an idea of how Cisco Calculates its MTU ,
Regards,
Mohamed

Facing issue in using SNMPV3 on Cisco Routers

Hi,
Actually, i am trying to implement SNMPV3 on Cisco Routers & Switches to manage & monitor these devices in a more secure manner using NMS called Orion (NPM) Network Performance Monitor.
When i am going to add the node on Orion (NPM), it is showing me an error that the device does not support the interfaces MIB.
The Routers IOS Version and its feature set is as under:
Cisco 3800 & 2800 (IOS version 12.4(20)T2 Advance IP Services).
Configuration as under:
snmp-server DEPT_GRP V3 auth context DEPT_CTX read DEPT_VIEW
snmp-server view DEPT_VIEW iso included
snmp-server view DEPT_VIEW internet included
snmp-server view DEPT_VIEW interfaces included
snmp-server view DEPT_VIEW system included
snmp-server view DEPT_VIEW chassis included
snmp-server context DEPT_CTX
snmp-server user SNMPADMIN DEPT_GRP v3 auth sha cisco123 priv des cisco123
snmp-server host 213.42.48.158 version 3 auth SNMPADMIN
At Orion parameters are given as under:
username :- SNMPADMIN
SNMPV3 context :- DEPT_CTX
SNMPV3 Authentication :- SHA1
SNMPV3 Privacy/Encryption :- DES56
Password Key :- cisco123 (All the places)
Kindly help me out and advise me where i am going wrong. Kindly check the configuration above is anything missing in it regarding the SNMPV3 configuration.
Rgds,
Ayaz Ali

Hi Joe,
Thanks for your response. As per your reply, i had removed the context and views which were configured earlier on the router and followed the same instructions as you mentioned in your reply, but i would like to tell you one thing about the configuration that i had done for snmp v3.
Your configuration is :-
snmp-server group DEPT_GRP v3 auth read v1default
snmp-server user SNMPADMIN DEPT_GRP v3 auth sha cisco123 priv des cisco123
My Configuration is :-
snmp-server group DEPT_GRP v3 priv read v1default
snmp-server user SNMPADMIN DEPT_GRP v3 auth sha cisco123 priv des cisco123
In your configuration, you are using Authentication (Auth) for the SNMP v3 group and if u select auth (Keyword) then you have to only provide authentication method (SHA,MD5) no privacy keys for encryption (DES,AES) in snmp user configuration, otherwise it will give you an error that credential not matched on the host when you try to poll the device.
In my configuration, I am using privacy (priv) for the SNMP v3 group, thats why i had given both authentication and encryption keys under SNMP user configuration.
In short, user settings are dependent on the group settings if you are using auth then it only support authentication but no privacy and if you are using priv then it allow both authentication and encryption (privacy).
Thanks for your support, it really helped me out in solving the issue. Now, i am able to poll my all routers using snmp v3.
Rgds,
Ayaz Ali

ITunes looses photo sync settings for Apple TV (1st gen.)

Since the update to the new Photo app on my Mac, iTunes forgets the photo sync settings for my Apple TV (1st. generation, 160 GB HDD).
Every time I open the photo section of the Apple TV sync settings, all the options are turned off. Then I mark a couple of albums and sync the Apple TV >> all album appear on the Apple TV.
But after closing and re-opening iTunes in the photo settings everything is unmarked again. So on every following sync the photos on the Apple TV are easily erased :-( Resync them to the Apple TV takes hours (>30'000 photos!).
All the other sync settings in iTunes remain intact.
Environment:
- MacBook Pro Retina 15" with the latest SW (Mac OS, iTunes, Photo App, etc.)
- Apple TV 1st gen 160 GB HDD

Restarting iTunes resolves the issue in the majority of cases, if it doesn't my second guess would be your security software.
What really seems strange here is that there have been no updates since well before Xmas, so after initially setting it up, the first update would have brought you right up to the most recent (and indeed the very last) .
Agh, how silly of me, I see it's iTunes you have updated.
If that's about all you've changed, you might want to try reinstalling iTunes and bonjour.
Message was edited by: Winston Churchill

Cisco Routers - optimal dsl sync interval for bt a...

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