
C
HAPTER
36
| ERPS Commands
– 1128 –
ring ports, informing its neighbors that no request is present at this
node. When another recovered node holding the link blocked receives
this message, it compares the Node ID information with its own. If the
received R-APS (NR) message has a higher priority, this unblocks its
ring ports. Otherwise, the block remains unchanged.
◆
The node identifier may also be used for debugging, such as to
distinguish messages when a node is connected to more than one ring.
E
XAMPLE
Console(config-erps)#node-id 00-12-CF-61-24-2D
Console(config-erps)#
non-erps-dev-
protect
This command sends non-standard health-check packets when an owner
node enters protection state without any link down event having been
detected through SF messages. Use the
no
form to disable this feature.
S
YNTAX
[
no
]
non-erps-dev-protect
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
ERPS Configuration
C
OMMAND
U
SAGE
◆
The RPL owner node detects a failed link when it receives R-APS (SF -
signal fault) messages from nodes adjacent to the failed link. The
owner then enters protection state by unblocking the RPL. However,
using this standard recovery procedure may cause a non-EPRS device
to become isolated when the ERPS device adjacent to it detects a
continuity check message (CCM) loss event and blocks the link between
the non-ERPS device and ERPS device.
CCMs are propagated by the Connectivity Fault Management (CFM)
protocol as described under
. If the
standard recovery procedure were used as shown in the following
figure, and node E detected CCM loss, it would send an R-APS (SF)
message to the RPL owner and block the link to node D, isolating that
non-ERPS device.
Figure 423: Non-ERPS Device Protection
non
-E
RPS
A
non
-E
RPS
RPL
Owner
RPL
X
X
b
l
ocked
b
l
ocked
fau
l
t
B
C
D
E
F
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...