CiscoVPC学习笔记.docx

VPC学习笔记（包含配置）_vpc 话题： HYPERLINK /tags/130550-0.html \t _blank vpc Virtual Port Channels用途：扩展port-channel，将连接不同设备链路汇聚成一条逻辑的链路。（个人理解）支持设备：N5K、N7K、N2K优势：设备级别冗余，收敛速度比STP快（无STP） 去除了STP BLOCK端口，提供无环路网络 更好的带宽利用（线路能 HYPERLINK /cpro/ui/uijs.php?adclass=0app_id=0c=newscf=1001ch=0di=128fv=20is_app=0jk=7737e951d0c7428ck=%B8%BA%D4%D8%BE%F9%BA%E2k0=%B8%BA%D4%D8%BE%F9%BA%E2kdi0=0luki=1mcpm=0n=10p=baiduq=haoshuduoduo_cprrb=0rs=1seller_id=1sid=8c42c7d051e93777ssp2=1stid=9t=tpclicked3_hctd=1959052tu=u1959052u=http%3A%2F%2Fwww%2Eniubb%2Enet%2Fa%2F2015%2F04%2D25%2F291979%2Ehtmlurlid=0 \t _blank 负载均衡）注意：VPC只能用于二层，VPC端口不能运行路由协议。实现方式：将2个nexus设备关联到VPC? HYPERLINK /cpro/ui/uijs.php?adclass=0app_id=0c=newscf=1001ch=0di=128fv=20is_app=0jk=7737e951d0c7428ck=domaink0=domainkdi0=0luki=6mcpm=0n=10p=baiduq=haoshuduoduo_cprrb=0rs=1seller_id=1sid=8c42c7d051e93777ssp2=1stid=9t=tpclicked3_hctd=1959052tu=u1959052u=http%3A%2F%2Fwww%2Eniubb%2Enet%2Fa%2F2015%2F04%2D25%2F291979%2Ehtmlurlid=0 \t _blank domain。两台设备通过2条特殊链路实现信息交换：vPC peer-keepalive link：心跳链路，确保两台VPC设备在线。避险A/A或者split-brain情况导致VPC拓扑环路。VPC端口可以是1G或者10G端口vPC peer link：VPC邻居之间交换状态信息，提供而外的机制发现和防止split-brain情况split-brain是什么？关于peer-keepalive端口MGT可以作为vPC peer-keepalive link接口。在N7K上如果引擎切换或者在线服务升级（ISSU）管理端口会改变，导致keepalive中断。 如果使用MGT口，保证所有MGT口接入到网管 HYPERLINK /cpro/ui/uijs.php?adclass=0app_id=0c=newscf=1001ch=0di=128fv=20is_app=0jk=7737e951d0c7428ck=%BD%BB%BB%BB%BB%FAk0=%BD%BB%BB%BB%BB%FAkdi0=0luki=7mcpm=0n=10p=baiduq=haoshuduoduo_cprrb=0rs=1seller_id=1sid=8c42c7d051e93777ssp2=1stid=9t=tpclicked3_hctd=1959052tu=u1959052u=http%3A%2F%2Fwww%2Eniubb%2Enet%2Fa%2F2015%2F04%2D25%2F291979%2Ehtmlurlid=0 \t _blank 交换机。 可以使用数据接口的port-channel接口提高更高级别的 HYPERLINK /cpro/ui/uijs.php?adclass=0app_id=0c=newscf=1001ch=0di=128fv=20is_app=0jk=7737e951d0c7428ck=%C8%DF%D3%E0k0=%C8%DF%D3%E0kdi0=0luki=2mcpm=0n=10p=baiduq=haoshuduoduo_cprrb=0rs=1seller_id=1sid=8c42c7d051e93777ssp2=1stid=9t=tpclicked3_hctd=1959052tu=u1959052u=http%3A%2F%2Fwww%2Eniubb%2Enet%2Fa