Other Network Architecture Subjects

I have a scenario I am trying to get an explanation to regarding 2 PIM DR's running as anycast RP's attached to a LAN. Basically I cannot understand how PIM,IGMP operates in the scenario below with the respect to the forwarding of source traffic fro...

Can someone give me a helping hand?I am using cisco 2620 routers (provisioning: 2x Smart Serial / 1x Ethernet / 16 MB Flash and default RAM)in a pure DCN (means: only clnp traffic)environment. All routers are running IS-IS. The network is separated i...

I was successful setting the eth. int. to full duplex on the 3640 by upgrading the IOS to 12.2, but can I do the same on the AS5200? They don't publish an 12.2 ios for the 5200. Will it do full duplex with 12.1? Can I do full duplex through the ether...

In one city I have a 1700 (A) that connects the LAN to a server and another 1700 (B) that routes to the internet. In a second city I have a 1700 (B) connecting thru a T1 to 1700 (A) but I can't get to the internet or see 1700 (B). What do I need t...

Is there a way to enable hsrp or similar function on as5300's for failover/redundancy?

Hello,What are the best practises to solve this topologyI have several branch offices connected via BGPto a BGP core Network. Branch office X use 10.X.0.0/16 networkI would like that network core announces summarize10.0.0.0/8 to each branch offices.E...

Hello, I use cisco's DialOut utility using 2 AS5300's. I'm trying to figure out a way to set up failover redundancy. Since the DialOUT client only allows you to specify one IP address of hostname of the As5300, I do not know how to set up failover to...

Hi all,I have a 3620 with dual Channelaized E1 and 30 Digital modems as an access server.This configuration work well for 2 years, but now the router go down with this log%OIRINT: OIR Event has occurred oir_ctrl 1000 oir_stat CFCE*** Watch Dog Timeou...

i can't put "vpdn enable" on my cisco 7507 IOS ver. 12.0(10)S1Why is it so? What are the requirementsto enable me to put that command (router, IOS, etc)????

I have a Cisco 2611 router which I use to connect to the internet but at the same time to some remote sites. I have a firewall between this router and my internal Cisco 2610 router which connects my LAN and other remote sites. My company says it can ...

I have 32 Gbps in backplane and I need increase to 128 Gbps and other device a 256 Gbps. I buy WS-C6500-SFM or not. What can do ??

I have set up a few ISDN by using BRI to BRI, BRI to PRI, and Adtran ISU128 to ISU128 and serial port. Has any body ever successfully set up an ISDN by using BRI to Adtran ISU128 ? If you can let me know why it will not work, I would be much apprec...

Is it possible, with the cooperation of the Telco and some modem/adapter, to connect an ISDN30 Telco line to a Quad E1/PRI card with serial support, on an AS5300 Universal Access Server?This as an alternate for an incoming E1 line.gerold@cq-link.sr

We’re using a Cisco 2600 series router to give our customers remote support over ISDN.Our customers are using Cisco 801 ISDN routers.When we connect to a remote site, the 801 router calls us back.But our customers can also build up a connection to ou...

Hi, I have a case where my MPLS_PE (edge LSR) router is connected on a BPX switch (core LSR) via an STM-1 link.What if all or one of the tag vc's on this link fills with (ubr PCR:155Mb)traffic?I have used a second STM-1 link from the PE to the BPX a...