H3C SR6600 Series, Часто задаваемые вопросы

Страница: 3 / 22

ii
Q. Why doesn't the running configuration on a reunified IRF fabric include the configuration that I made on
one chassis after an IRF split? ······································································································ 10
Network security and attack prevention ··············································· 10
Q. What attack prevention types does the router support? ······························································· 10
Q. Does the router support local authentication before RADIUS authentication? ·································· 10
Q. Why cannot a user log in to an ACS authentication server through a console port when the router uses
RADIUS authentication? ·············································································································· 10
Q. Why can the level for the RADIUS server (the router) only be 1 when it connects to an ACS server? ·· 10
Q. Does the router support local authentication when the HWTACACS authentication fails? ·················· 11
Q. Can the router be connected to a TACACS server that runs third-party TACACS server software? ····· 11
Q. Does the reply from a RADIUS server include the Login-Service option after the authentication succeeds?
11
Q. How do I set the user role?···································································································· 11
Q. What is the relationship between the levels authorized by an SR6600 HWTACACS server and the levels
authorized by a Cisco ACS server? ······························································································· 11
Q. Which user role is assigned to a Telnet user: The user role configured in VTY user interface or the user
role configured on a RADIUS server or a HWTACACS server? ··························································· 11
Q. How do I prevent gateway spoofing when the router acts as a gateway? ······································· 12
IP forwarding services ····································································· 12
Q. Does the router support cross-card port mirroring? ···································································· 12
Q. Does the router support remote port mirroring? ········································································· 12
Q. What tunneling technologies does the router support? ································································ 12
Q. What protocols and features does BFD support on the router? ····················································· 12
Q. What interfaces can be used for link aggregation? ····································································· 12
Q. Does the router support cross-card link aggregation? ································································· 13
IP routing ······················································································ 13
Q. Does the router support configuring blackhole routes? ······························································· 13
Q. Is the OSPF cost of a Layer 3 Ethernet interface on the router relevant to the interface rate? ············· 13
Q. What are the preferences of different routing protocols? ····························································· 13
Q. Does the router discard the matching packets when the PBR-based forwarding fails? ······················ 14
Q. What is the compatibility between routing protocols and the GR, NSR, FRR, and BFD features? ········ 14
MPLS ·························································································· 14
Q. Which MPLS features are supported by the router? ··································································· 14
IP multicast ··················································································· 14
Q. Which IGMP versions are supported by the router? ··································································· 15
Q. Are static RPs supported by the router? ··················································································· 15
Q. Are static multicast routes supported by the router? ··································································· 15
Q. How do I deny multicast packets from an illegal multicast source? ················································ 15
Q. Are multicast group policies supported by the router? ································································· 15
Q. The RPF check fails after the MSDP peer switchover in inter-domain multicast routing. What are the
possible reasons? ······················································································································ 16
Q. Is BIDIR-PIM or IPv6 BIDIR-PIM supported by the router? ·························································· 16
Q. Is inter-AS MD VPN supported by the router? ··········································································· 16
Q. Is IP multicast unavailable if I configure both of VPLS and IP multicast on the same interface of the
router? ····································································································································· 16
NAT ···························································································· 16
Q. Which cards can support NAT? ······························································································ 16
Q. How does the router perform NAT?························································································· 16
Q. Why routing protocols are not recommended to be configured on the interface with Easy IP configured?
17
VXLAN ························································································· 17
Q. Do all types of cards support VXLAN? ····················································································· 17
Q. Can I use the router as a VXLAN IP gateway? ·········································································· 17
Q. Can I use VXLAN for Layer 2 forwarding on the router? ······························································ 17