Regarding Failover/ Port channel with 2 6513s each unit running dual sup720 3B, Question with Sup720 3Bs (PFC-3B) running SSO redundacny do I have to configure ether channel? or can I go ahead and just patch between both 6513 supervisors to utilize all gig ports, since SSO is already configured, does SSO take care of ether channelling? do I have to configure port channel on top of SSO to get port/ether channel?