1. A method at a network device, the method comprising:
at a network switch:
receiving a previous advertisement including a host network layer address of a host and an existing sequence value associated with the host network layer address;
after the receiving, detecting that the host is associated with the network switch, the host being a device or a program application that provides a service;
generating a sequence value at the network switch based on the detecting, the generating including changing the received existing sequence value to a next sequential value that represents the sequence value;
associating the sequence value with the host network layer address of the host; and
transmitting an advertisement to a different network switch, the advertisement including the host network layer address and the sequence value.
2. The method of claim 1, wherein the advertisement includes a network layer address of the network switch, the host being in communication with the network switch.
3. The method of claim 1, wherein the generating the sequence value comprises:
incrementing the received existing sequence value to the next sequential value.
4. The method of claim 1, wherein the generating the sequence value comprises:
decreasing the received existing sequence value to the next sequential value.
5. The method of claim 1, wherein the existing sequence value includes a letter, and the changing the sequence value includes changing the letter to a next sequential letter that represents the sequence value.
6. The method of claim 5, wherein the changing the letter includes increasing the letter to the next sequential letter that represents the sequence value.
7. The method of claim 5, wherein the changing the letter includes decreasing the letter to the next sequential letter that represents the sequence value.
8. An apparatus comprising:
a network switch including:
a processor; and
a memory in communication with the processor, the memory comprising instructions executable by the processor, when the instructions are executed the processor being operable to:
receive a previous advertisement including a host network layer address of a host and an existing sequence value associated with the host network layer address;
after the previous advertisement is received, generate, based on detecting that the host is associated with the network switch, a sequence value at the network switch, wherein the processor is configured to generate by changing the received existing sequence value to a next sequential value that represents the sequence value, the host being a device or a program application that provides a service;
associate the sequence value with the host network layer address of the host; and
transmit an advertisement to a different network switch, the advertisement including the host network layer address and the sequence value.
9. The apparatus of claim 8, wherein the advertisement includes a network layer address of the network switch, the host being in communication with the network switch.
10. The apparatus of claim 8, wherein the processor is further operable to:
increment the received existing sequence value to the next sequential value.
11. The apparatus of claim 8, wherein the processor is further operable to:
decrease the received existing sequence value to the next sequential value.
12. A non-transitory machine-readable storage medium comprising instructions that, when executed by one or more processors of a network switch, cause the network switch to perform operations comprising:
receiving a previous advertisement including a host network layer address of a host and an existing sequence value associated with the host network layer address;
after the receiving, detecting that the host is associated with the network switch, the host being a device or a program application that provides a service;
generating a sequence value at the network switch based on the detecting, the generating including changing the received existing sequence value to a next sequential value that represents the sequence value;
associating the sequence value with the host network layer address of the host; and
transmitting an advertisement to a different network switch, the advertisement including the host network layer address and the sequence value.
13. The storage medium of claim 12, wherein the advertisement includes a network layer address of the network switch, the host being in communication with the network switch.
14. The storage medium of claim 12, wherein the generating the sequence value comprises:
incrementing the received existing sequence value to the next sequential value.
15. The storage medium of claim 12, wherein the generating the sequence value comprises:
decreasing the received existing sequence value to the next sequential value.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A biological buffer of the following structure:
where A, D, and E are independently chosen from \u2014H, \u2014CH3, \u2014CH2CH3, and \u2014CH2OH, and G is chosen from \u2014H, \u2014CH3, \u2014OH, where A, E and D may not all equal \u2014H.
2. The biological buffer of claim 1 where A\u2550D\u2550E\u2550\u2014CH2OH, and G\u2550\u2014CH3.
3. The biological buffer of claim 1 where A\u2550D\u2550E\u2550\u2014CH2OH, and G\u2550\u2014H.
4. The biological buffer of claim 1 where A\u2550D\u2550\u2014CH3 and E\u2550\u2014CH2OH and G\u2550\u2014CH3.
5. The biological buffer of claim 1 where A\u2550D\u2550\u2014CH3 and E\u2550\u2014CH2OH and G\u2550\u2014H.
6. A Biological Buffer of the following structure:
where A and D are independently chosen from \u2014H, \u2014CH3, \u2014CH2CH3, and \u2014CH2OH, E is chosen from \u2014CH2CH3 and \u2014CH2OH.
7. The biological buffer of claim 6 where A\u2550D\u2550E\u2550\u2014CH2OH.
8. The biological buffer of claim 6 where A\u2550D\u2550\u2014CH3 and E\u2550\u2014CH2OH.