CCNA Routing and Switching
HuPe306583u
HuPe306583u
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oles 905<br />
need for, 549<br />
options, 550-551<br />
LANs<br />
problems caused without STP,<br />
45-46<br />
STP, 42<br />
network needs for, 547-548<br />
single points of failure, 547<br />
reference b<strong>and</strong>width, 216-217<br />
relationships (neighbors), 284<br />
EIGRP for IPv6, 656-657<br />
OSPFv3, troubleshooting, 633-635<br />
pinging routers, confirming, 285<br />
requirements, 284<br />
states, 628<br />
relay agents (DHCPv6), 596<br />
Reliable Transport Protocol (RTP), 235<br />
remark comm<strong>and</strong>, 472, 487<br />
Remote SPAN (RSPAN), 721<br />
reply messages (EIGRP), 242<br />
reported distance (RD), 240-241, 257<br />
Representational State Transfer<br />
(REST), 769<br />
requirements<br />
cloud computing services, 739<br />
EIGRP for IPv6 neighbors, 656<br />
neighbors, 284<br />
EIGRP, 286<br />
OSPF, 289<br />
OSPFv3, 633-634<br />
SNMPv3 configuration, 704<br />
VTP, 126-127<br />
resource pooling (cloud computing),<br />
739<br />
responders (IP SLAs), 713<br />
REST (Representation State Transfer),<br />
769<br />
RESTful APIs, 769<br />
reverse engineering from ACL to<br />
address range, 454-456<br />
reversed source/destination IP address,<br />
troubleshooting, 480-481<br />
RFC 1065, 694<br />
RFC 4301 Security Architecture for<br />
the Internet Protocol, 395<br />
RIDs (router IDs), 181<br />
defining, 196<br />
EIGRP, configuring, 252<br />
OSPF, 181<br />
configuring, 203-204<br />
duplicate, troubleshooting,<br />
291-293<br />
OSPFv3, 624<br />
RIP (<strong>Routing</strong> Information Protocol),<br />
175-176, 226<br />
RIPv2 (RIP Version 2), 226<br />
EIGRP/OSPFv2, compared, 233<br />
goals, 302<br />
RO (read-only) communities (SNMP),<br />
699<br />
ROAS (router-on-a-stick), 520, 524<br />
configuration, 524<br />
example, 524<br />
native VLANs, 525-526<br />
subinterface numbers, 525<br />
subinterfaces, creating, 524-525<br />
troubleshooting, 528-529<br />
verifying, 526-527<br />
connected routes, 526<br />
show vlans comm<strong>and</strong>, 527<br />
subinterface state, 527<br />
roles<br />
ports<br />
alternate, 60-61<br />
backup, 62-63
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