多选题Which of the following two statements about Cisco NSF and SSO are the most relevant to thenetwork designer？ （）AYou can reduce outage 1 to 3 seconds by using SSO in Layer 2 environment or Cisco NSF with SSO in a Layer 3 environment.BSSO and NSF each require the device to either be graceful restart-capable or graceful-aware.CIn a fully redundant topology adding redundant supervisor a with NSF and SSO may causelonger convergence times than single supervisors with turned IGP timesDThe primary deployment scenario for Cisco NSF with SSO is in the Distribution and Corelayers.ECisco NSF-aware neighbor relationship are independent of any turned IGP times
多选题
Which of the following two statements about Cisco NSF and SSO are the most relevant to thenetwork designer？ （）
A
You can reduce outage 1 to 3 seconds by using SSO in Layer 2 environment or Cisco NSF with SSO in a Layer 3 environment.
B
SSO and NSF each require the device to either be graceful restart-capable or graceful-aware.
C
In a fully redundant topology adding redundant supervisor a with NSF and SSO may causelonger convergence times than single supervisors with turned IGP times
D
The primary deployment scenario for Cisco NSF with SSO is in the Distribution and Corelayers.
E
Cisco NSF-aware neighbor relationship are independent of any turned IGP times
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