Switching

HiAs per RSTP protocol documentation, RSTP send Hello message to neighbour switch and detect the failure in switch. Every switch have own BPDU in RSTP, I know regular STP protocol require root bridge because they will send update BPDU in switching do...

Hello Everyone,I have been experimenting with Multi-Area OSPF and Redistribution in preparation for the CCNP ROUTE test. Redistributing routes into OSPF seems to be easy enough but the external routes only show up in Area 0. Can anybody tell me what ...

Hi experts,I recently run into an issue that somebody mistakenly interconnected two devices which are connected on two separate ports on the same switch. The devices are a  VOIP phone and an IPTV STB. They all have the 2nd port and sombody had the po...

Hello All Friends,We have just finish configuration on Cisco 1861 router, I'm trying to do a configuration of our wireless infrastructure and am having some difficulties.  I have Cisco Aironet Wi-Fi Access-Point, and I have done configuration them wi...

Hello everyone!We have just installed a Sv8300 phone switch and configured it with a xxx.xxx.102.3 ip address.  it is connected to a port on a CISCO 3750.  The switch is connected to a 2800 router.  I am able to ping within the LAN but not outside no...

Hi,I have 2 WS-C3750X-24T-S switches that I would like to use as a stack. Each has come with one 350WAC power supply. Does a single 350WAC powersupply support two switch stack. Meaning, if plug out powersupply of one switch, will the stack be still r...

Hi EveryoneI am planning to my CCIE R&S strating next year but I dont know from where to can anyone please guide me in right direction that will be gerat ,Which book do I have to read for my CCIE R&S ( Written Exam )Which book or Training do I havre ...

I have a 4006 chassis connected to 2 3560Gs via two port-channels. Those two 3560's are connected to each other via another port channel. Periodically - I get the following log entries - indicating that port-channel 1 on 3560#1 is being blocked becau...

Im having a basic infrastructure setup issue.I have been given the following ip information for connection to a service provider.10.191.66.8/30.9 being the A (their) end.10 being Z (my) endI have been given a range of ips to give to clients for their...

HI all ¡¡¡ I have some doubts about rstp and i hope someone can help me.1º)I have read when a new switch its added to the toplogy RSTP requires it to base its forwarding decisions on the type of port(edge, point to point or root).I don't understand v...

Looking for a good configuration sample for our network core. We have dual6509 switches. Just upgraded one switch to native IOS only. Plan to moveall network devices to this when it is ready. The second(current production 6509)is still running IOS/Ca...