Chapter 24 Diagnostic
P-870H/HW Series User’s Guide
234
Maintenance
Association (MA)
Format
Select the format which the ZyXEL Device uses to send this MA
information in the domain (MD). Options are VID, String and
Integer.
If you select VID or Integer, the ZyXEL Device adds the VLAN ID you
specified for an MA in the CCM.
If you select String, the ZyXEL Device adds the MA name you
specified above in the CCM.
Note: The MEPs in the same MA should use the same MA format.
Destination MAC
Address
Enter the target device’s MAC address to which the ZyXEL Device
performs a CFM loopback test.
Count
Set how many times the ZyXEL Device send loopback messages
(LBMs).
802.1Q VLAN ID
Type a VLAN ID (0-4095) for this MA.
Maintenance End
Point ID
Enter an ID number (1-8191) for this MEP port. Each MEP port needs a
unique ID number within an MD. The MEP ID is to identify an MEP port
used when you perform a CFM action
Status
Continuity Check
Message (CCM)
This shows how many Connectivity Check Messages (CCMs) are sent
and if there is any invalid CCM or cross-connect CCM.
Loopback
Message (LBM)
This shows how many Loop Back Messages (LBMs) are sent and if
there is any inorder or outorder Loop Back Response (LBR) received
from a remote MEP.
Linktrace
Message (LTM)
This shows the destination MAC address in the Link Trace Response
(LTR).
Save
Click this to save your changes back to the ZyXEL Device.
Enable CCM
Click this button to have the selected MEP send Connectivity Check
Messages (CCMs) to other MEPs.
Disable CCM
Click this button to disallow the selected MEP to send Connectivity
Check Messages (CCMs) to other MEPs.
Update CC status Click this button to reload the test result.
Send Loopback
Click this button to have the selected MEP send the LBM (Loop Back
Message) to a specified remote end point.
Send Linktrace
Click this button to have the selected MEP send the LTMs (Link Trace
Messages) to a specified remote end point.
Table 90
Maintenance > Diagnostic > 802.1ag (continued)
LABEL
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
