We list them in ascending cost of supporting equipment:. FlexStack is specific only to Cisco Catalyst S series switch, this technology allows you to connect up to 4 switches in a single stack.
Each module has two ports for such cables. The communication protocol works like FlexStack Protocol Ethernet, allowing transmission of packets within the stack according to the table of switching each switch or on access ports, or stacking ports. This technology is an extension of the Flexstack and introduces with newer model of Cisco Catalyst family — X and XR. This technology is supported by Cisco series and G-series and allows you to create a single stack up to 9 units with a special stacking cable interconnecting each other.
Data traffic are allocated between two logical counter-rotating paths, Each counter-rotating path supports 16 Gbps in both directions, yielding a traffic total of 32 Gbps bidirectionally. When a break is detected in a cable, the traffic is immediately wrapped back across the single remaining Gbps path to continue forwarding.
This technology is implemented in the Catalyst E series and X switches. It doubles the total stacking bandwidth to 64Gbps compare to Stackwise. The evolution involved destination striping, up to 2 line rate 10GE ports per Cisco Catalyst E and also backward compatibility with Stackwise. This technology is able to combine up to 9 line Cisco switches. The union is made by using a special kit supplied separately. This technology has been implemented in switches Cisco family.
The algorithm is similar to that used in Cisco X destination stripping , but there is no backward compatibility. Standby commander: One switch in the domain can be configured to act as a backup in case of failure of the commander switch. This switch can also be any switch in the domain that is configured to take over the virtual stack address after the commander switch fails.
Member switch: Switch that is already part of the cluster domain but is neither the commander switch nor the standby commander switch. Candidate switch: Switch connected to the network that meets all the requirements and is capable of joining the cluster domain.
Requirements for Virtual Stacking Although there is no need of any additional hardware to enable this feature, there are certain requirements before one can configure virtual stacking. They are: Cisco Discovery Protocol v2 should be enabled on switches that would be part of a domain. Both commander and standby commander switches should have an IP address assigned to them. There should be at least one common VLAN between the commander, standby commander, and all the members switches.
A switch can only be part of a single cluster at any given instance. Did you mean:. All Community This category This board. Timothy Patrick. Stack redundancy using 2 routers, HSRP and port-channels. Tags: lan. Preview file. I have this problem too. All forum topics Previous Topic Next Topic. Accepted Solutions. Jon Marshall.
VIP Community Legend. In response to Timothy Patrick. Francesco Molino. VIP Mentor. Hi What model of routers are you using? Do you have free ports available? You won't be able to split the port-channel across both stacks but you can create another port-channel facing the other stack the stack where the router isn't connected yet and assign a new subnet point to point. Are you using dynamic or static route?
Then configure the first wired router to trust the second network? Is there more to it? I apologize for not really knowing much about the topic, but any help is appreciated. What you need to do is to look at the subnet mask.
This is usually either I won't go into the details as it will only complicate things, but you need to change the one of the numbers above the s. So if your first adress range is If the mask is For example As you can see I put x's in in the corresponding places to the 0's in the mask since everything above the zeroes are in the same network. I recommend the first option three 's since its easier to just think of the last number as a host address. Hopefully I made it clear enough, but just ask if there is something you don't understand.
Jun 25, 0 18, 0. Spec: Intel P4 2. You must log in or register to reply here. Networking 2 Oct 26, Post thread. Question Super giving me worse frames than a ? Started by Small-Change Oct 7, Replies: Graphics Cards. Started by rounakr94 Today at PM Replies: 6. News Comments.
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