Interface Configuration
7750 SR OS Interface Configuration Guide
Page 93
Since ALA-A uses dot1q encapsulation, the SAP MTU must be set to 1518 to be able to accept a
1514 byte service frame (see
for MTU default values). Each SDP MTU must be set to at
least 1514 as well. If ALA-A’s network port (2/1/1) is configured as an Ethernet port with a GRE
SDP encapsulation type, then the MTU value of network ports 2/1/1 and 3/1/1 must
each
be at
least 1556 bytes (1514 MTU + 28 GRE/M 14 Ethernet). Finally, the MTU of ALA-B’s
SAP (access port 4/1/1) must be at least 1514, as it uses null encap.
Table 19: MTU Configuration Example Values
ALA-A
ALA-B
Access (SAP)
Network
Network
Access (SAP)
Port (slot/MDA/port)
1/1/1
2/1/1
3/1/1
4/1/1
Mode type
dot1q
network
network
null
MTU
1518
1556
1556
1514
Содержание 7750 SR OS
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Страница 8: ...Page 8 7750 SR OS Interface Configuration Guide List of Tables ...
Страница 10: ...Page 10 7750 SR OS Interface Configuration Guide List of Figures ...
Страница 14: ...Preface Page 14 7750 SR OS Interface Configuration Guide ...
Страница 16: ...Getting Started Page 16 7750 SR OS Interface Configuration Guide ...
Страница 184: ...Card MDA and Port Command Reference Page 184 7750 SR OS Interface Configuration Guide ...
Страница 417: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 417 4 5 SAP PVT 1 1 up up A ima2 ...
Страница 429: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 429 Cells 0 0 Unknown VPI VCI Cells 0 A ALA 49 ...
Страница 437: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 437 bundle num 1 256 type ppp ...
Страница 438: ...Debug Commands Page 438 7750 SR OS Interface Configuration Guide ...
Страница 444: ...Index Page 444 7750 SR OS Interface Configuration ...