About joecb_sg497

joecb_sg497 · 11-11-2009

hi,In our company C6509, running s72033-ipservices_wan-mz-122-33.SXH4, i found some times it might send normal unicast traffic as broadcast. like host A send unicast to host B and third host C on the same VLAN may receive this traffic.and it's interm...

joecb_sg497 · 11-11-2009

hi,i'll disable mac agingthanks so much for your help.joe

joecb_sg497 · 11-11-2009

hi DAYONG,yes, we have two C6509 with HSRP enabled;i saw two such cases, one case is a host send packet to another host but routing via the HSRP gateway hosting on C6509, even through i think C6509 should know this MAC but it still broadcast it out.l...

joecb_sg497 · 10-06-2008

thanks Francois, i got it. anyway, any ccie-level switching book to recommend? Kennedy's book is obsolete, do you have passion to write one yourself?Thksjoe

joecb_sg497 · 10-05-2008

hi francois,you mentioned that once a portfast port receives a BPDU it will disable the portfast,does it mean the port will NOT godirectly to forwarding? but when i do a lab, i found it still go directly to forwarding, even through "show span inter p...

joecb_sg497 · 08-22-2007

Rick,Great post,i have tested what you said on Ethernet media, it's true that even next hop is not reachable the static route is still in the table.ThxJoe

Member Since	‎08-18-2007 04:07 PM
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C6509 switch send unicat as broadcast

Re: C6509 switch send unicat as broadcast

Re: C6509 switch send unicat as broadcast

Re: bpdu filter

Re: bpdu filter

Re: Differences between statics routes